Buche De Noel From Joy Of Baking Recipe 465 Recipes

BUCHE DE NOEL

Steps:

• To make the buttercream: Whisk the egg whites and sugar together in the bowl of an electric mixer. Set the bowl over simmering water and whisk gently until the sugar is dissolved and the egg whites are hot. Attach the bowl to the mixer and whip with the whisk on medium speed until cooled. Switch to the paddle and beat in the softened butter and continue beating until the buttercream is smooth. Dissolve the instant coffee in the liquor and beat into the buttercream.
• Turn the genoise layer over and peel away the paper. Invert onto a fresh piece of paper. Spread the layer with half the buttercream. Use the paper to help you roll the cake into a tight cylinder Transfer to baking sheet and refrigerate for at least 30 minutes or until set. Reserve the remaining buttercream for the outside of the buche.
• To make the marzipan: Combine the almond paste and 1 cup of the sugar in the bowl of the electric mixer and beat with the paddle attachment on low speed until the sugar is almost absorbed. Add the remaining 1 cup sugar and mix until the mixture resembles fine crumbs. Add half the corn syrup, then continue mixing until a bit of the marzipan holds together when squeezed, adding additional corn syrup a little at a time, as necessary; the marzipan in the bowl will still appear crumbly. Transfer the marzipan to a work surface and knead until smooth.
• To make marzipan mushrooms: Roll 1/3 of the marzipan into a 6-inch long cylinder and cut into 1-inch lengths. Roll half the lengths into balls. Press the remaining cylindrical lengths (stems) into the balls (caps) to make mushrooms. Smudge with cocoa powder. To make holly leaves: Knead green color into 1/2 the remaining marzipan and roll it into a long cylinder. Flatten with the back of a spoon, then loosen it from the surface with a spatula. Cut into diamonds to make leaves, or use a cutter.
• To make holly berries: Knead red color into a tiny piece of marzipan. Roll into tiny balls.
• To make pine cones, knead cocoa powder into the remaining marzipan. Divide in half and form into 2 cone shapes. Slash the sides of cones with the points of a pair of scissors.
• Unwrap the cake. Trim the ends on the diagonal, starting the cuts about 2 inches away from each end. Position the larger cut piece on the buche about 2/3 across the top. Cover the buche with the reserved buttercream, making sure to curve around the protruding stump. Streak the buttercream with a fork or decorating comb to resemble bark. Transfer the buche to a platter and decorate with the marzipan. Sprinkle the platter and buche sparingly with confectioners' sugar "snow."
• Storage: Keep at cool room temperature. Cover leftovers loosely and keep at room temperature.
• Set rack in the middle of the oven and preheat to 400 degrees.
• Half-fill a medium saucepan with water and bring it to a boil over high heat. Lower the heat so the water is simmering.
• Whisk the eggs, yolks, salt, and sugar together in the bowl of a heavy-duty mixer. Place over the pan of simmering water and whisk gently until the mixture is just lukewarm, about 100 degrees (test with your finger). Attach the bowl to the mixer and with the whisk attachment, whip on medium-high speed until the egg mixture is cooled (touch the outside of the bowl to tell) and tripled in volume.
• While the eggs are whipping, stir together the flour, cornstarch, and cocoa.
• Sift 1/3 of the flour mixture over the beaten eggs. Use a rubber spatula to fold in the flour mixture, making sure to scrape all the way to the bottom of the bowl on every pass through the batter to prevent the flour mixture from accumulating there and making lumps. Repeat with another 1/3 of the flour mixture and finally with the remainder.
• Scrape the batter into the prepared pan and smooth the top. Bake the genoise for about 10 to 12 minutes, or until well risen, deep and firm to the touch. (Make sure the cake doesn't overbake and become too dry, or it will be hard to roll.)
• Use a small paring knife to loosen the cake from the sides of the pan. Invert the cake onto a rack and let the cake cool right side up on the paper. Remove the paper when the cake is cool.
• Storage: Wrap in plastic wrap and refrigerate for several days, or double-wrap and freeze for up to a month.

BUCHE DE NOEL

Steps:

• For the walnut biscuit:
• Preheat oven to 350 degrees F. Butter a half sheet pan, line with parchment paper, butter the paper and dust with flour. Whip the egg whites to soft peaks. Beat in both sugars and whip to a stiff, glossy meringue. Alternately fold the cake flour and egg yolks into the meringue in 3 batches, starting and ending with the flour. Fold in the nuts. Spread the batter evenly in the pan, and bake until the cake is pale gold, the center springs back when you press it lightly with your finger, and the edges start to pull from the sides of the pan, 10 to 12 minutes. ;
• For the pastry cream:
• Whisk the yolks, cornstarch, and the 40 grams sugar in a medium bowl; the mixture will be very thick, but try to whisk enough to remove most of the lumps. Put the 75 grams sugar in a medium saucepan and cook over medium heat until dark brown; don't worry if it crystallizes a bit. Turn the heat to low and whisk in the maple syrup, then whisk in the whisky, turn up the heat, and let simmer for 1 to 2 minutes to boil off the alcohol. Whisk the milk and vanilla bean scrapings into the caramel mixture and bring to simmer. Slowly whisk about half of the hot mixture into the yolks, then whisk that mixture back into the pot, bring to a boil, whisking, and cook, still whisking, until thickened. Remove from the heat and whisk in the butter, salt and maple extract. Pour into a shallow dish, press plastic wrap onto the surface, and chill until set and very cold, about 4 hours. Beat the cold pastry cream in a standing mixer until smooth. When ready to use, whip the cream until it is very stiff, then beat into the pastry cream. Chill until ready to use. ;
• For the buttercream:
• Put the sugar in a medium pot and add enough water just to moisten; use your fingers to wet the sugar evenly. Bring to a boil. While the sugar is heating, start beating the yolks and egg in a standing mixer with the whisk attachment. When the syrup reaches about 240 degrees F on a candy thermometer (softball stage), pour it into the yolks with the mixer still running, taking care not to pour it onto the whisk. Beat until cooled to room temperature. Beat in the whisky and the maple extract. Cream the butter in another mixing bowl using the paddle attachment. Beat in the cooled egg mixture until smooth. You can use it right away, or chill it overnight; if you chill it, rebeat when you are ready to assemble the cake. ;
• For the sugared cranberries:
• Have a cookie sheet or shallow dish and a slotted spoon next to the stove. Put the sugar in a medium pot and add enough water just to moisten; use your fingers to wet the sugar evenly. Add the cinnamon stick. Bring to a boil, add the cranberries, and immediately pull from the heat. Transfer the cranberries to the cookie sheet with the slotted spoon. Cool. ;
• For the maple tuiles:
• Cream the butter, maple syrup, vanilla bean scrapings and salt until smooth. Scrape the sides of the bowl and beat in egg whites until smooth. Beat in the flour. Let the batter rest and hour or so at room temperature, or overnight in the refrigerator. Bring to room temperature before baking. Preheat the oven to 325 degrees F. Line a sheet pan with a silpat. Using a stencil, smear the batter thinly on the silpat and bake until dark golden brown, about 6 to 8 minutes. Remove from the pan while still warm. If you want to shape the cookies, put them over a bottle or rolling pin while warm; let cool. If desired, brush lightly with luster dust. ;
• Assembly:
• Turn the cooled cake onto a piece of parchment or waxed paper with a long side near you. Spread the chilled pastry cream evenly over the surface, leaving a 2-inch border across from you. Using the parchment paper to lift, roll the cake as tightly as possible. Set seam side down on a platter or large pan, and chill for an hour or so. Frost the cake with the buttercream, smoothing the surface so it looks like bark. Decorate with candied cranberries, walnuts, orange peel, and tuiles. ;

BUCHE DE NOEL

Steps:

• Preheat oven to 375 degrees F (190 degrees C). Line a 10x15 inch jellyroll pan with parchment paper. In a large bowl, whip cream, 1/2 cup confectioners' sugar, 1/2 cup cocoa, and 1 teaspoon vanilla until thick and stiff. Refrigerate.
• In a large bowl, use an electric mixer to beat egg yolks with 1/2 cup sugar until thick and pale. Blend in 1/3 cup cocoa, 1 1/2 teaspoons vanilla, and salt. In large glass bowl, using clean beaters, whip egg whites to soft peaks. Gradually add 1/4 cup sugar, and beat until whites form stiff peaks. Immediately fold the yolk mixture into the whites. Spread the batter evenly into the prepared pan.
• Bake for 12 to 15 minutes in the preheated oven, or until the cake springs back when lightly touched. Dust a clean dishtowel with confectioners' sugar. Run a knife around the edge of the pan, and turn the warm cake out onto the towel. Remove and discard parchment paper. Starting at the short edge of the cake, roll the cake up with the towel. Cool for 30 minutes.
• Unroll the cake, and spread the filling to within 1 inch of the edge. Roll the cake up with the filling inside. Place seam side down onto a serving plate, and refrigerate until serving. Dust with confectioners' sugar before serving.

BUCHE DE NOEL

Steps:

• PREPARE THE BISCUIT: Preheat oven to 420 degrees F. Place the whole eggs and yolks in a medium-sized mixing bowl. Add 1/3 cup of the granulated sugar and the milk. Whip with an electric mixer on medium-high speed, until the mixture lightens in color and triples in volume, about 6 minutes. Place the egg whites in a large mixing bowl, and whip at medium speed until foamy. Make French meringue by adding the remaining 2 tablespoons granulated sugar, 1 tablespoon at a time. When all the sugar has been added, increase mixer speed to medium-high and whip to stiff but not dry peaks, about 5 minutes.
• Use a rubber spatula to fold the egg mixture in batches into the meringue, incorporating it gradually so as not to deflate the meringue. When all the yolk mixture has been incorporated, place the flour in a fine-mesh sieve and sift over the mixture. Gently fold this in with the rubber spatula. Spread the batter evenly on a parchment-covered baking sheet, liberally dust the top of the biscuit with powdered sugar and place in the oven. Bake just until biscuit begins to brown on top, about 5 minutes. This will lock in the moisture, allowing you to roll the cake later without cracking it. Immediately after removing from the oven, run a knife around the inside of the baking sheet to loosen the cake from the sides. Remove cake from baking sheet and allow it to cool.
• PREPARE CHOCOLATE PASTRY CREAM: Make pastry cream as directed and let cool. Melt the chocolate in a double boiler or a mixing bowl placed over a bowl of simmering water, stirring it occasionally as it melts. When all of the chocolate is melted and smooth, remove it from heat, and add the cold pastry cream to the warm chocolate. Mix them together with a rubber spatula.
• PREPARE THE ROULADE: Place the biscuit on your work surface and soak with the flavored syrup. Spread the chocolate pastry cream evenly over the cake, spreading it all the way to the edges. Start at one long end and, rolling toward you, roll it into a tight cylinder. Place the roulade on a parchment covered baking sheet and place in the refrigerator for a few hours to set.
• PREPARE THE MUSHROOMS: Preheat oven to 250 degrees. Whip the egg whites on medium speed until foamy. Add the granulated sugar 1 tablespoon at a time, until you have volume, then add the rest of the sugar. Increase mixer speed to medium-high and whip until you have stiff but not dry peaks. Gently fold in the powdered sugar. Place the meringue in a large pastry bag fitted with a 1/4-inch plain tip. Pipe the mushroom pieces onto a parchment covered baking sheet. Make the stems by squeezing out a dime-sized mound of meringue, then pull the pastry bag straight up, leaving a small tail. Make the caps by piping 1/2-inch mounds onto the sheet. Sprinkle the caps with a little cocoa powder and place in the oven. Bake until firm and dry, about 1 hour, leaving the oven door cracked so moisture can escape. Remove from the oven and cool on a rack.
• PREPARE CHOCOLATE TREES: Make a cornet from parchment paper and fill half full with tempered chocolate. Pipe a long thick chocolate raindrop on a sheet of parchment paper. Draw a cake comb through the chocolate, starting at the center of the raindrop and moving from left to right. Repeat, starting at the center and moving from right to left. You should have a chocolate pine tree. Repeat for as many trees as you want. Allow the chocolate to set before peeling the parchment paper from it.
• PREPARE THE CHOCOLATE FENCE: Fill a cornet half full with the tempered chocolate, and pipe a 3 to 4-inch long railroad track, with the outside rails spaced about 2 inches apart and the inside rails spaced about 1/2-inch apart onto a sheet of parchment paper. Allow the chocolate to set before peeling the parchment paper from it.
• PREPARE THE COFFEE BUTTERCREAM: Place the egg yolks and whole egg in a large mixing bowl, and whip until thick, light, and tripled in volume, 5 to 7 minutes. Pour the water and granulated sugar into a 1-quart heavy-bottomed saucepan and place over medium heat. Insert a candy thermometer into the mixture. The sugar is ready when it reaches 250 degrees, or the soft ball stage. Pour the cooked sugar down the side of the bowl into the whipping eggs. Continue whipping the mixture until the outside of the bowl is warm but not hot, about 2 or 3 minutes. Add the butter all at once, and beat on medium speed until incorporated. Now whip on medium-high speed until thick, smooth and shiny, about 10 minutes. Remove about 1/3 cup and set aside. Add the coffee extract to the remaining buttercream and whip until well combined.
• ASSEMBLE THE BUCHE: Place the rolled cake on the platter you will use to serve it. Use a sharp knife to slice a 11/2-inch-thick slice from each end of the roll. These will become gnarls on the log. Spread a thick layer of buttercream over the buche. Place the ends or gnarls on top of the log, 1 at each end and cover with buttercream. Run a cake comb through the buttercream along the length of the buche, to make it look like bark. Place the buche in the refrigerator for about 15 minutes to let the buttercream set.
• MAKE THE IVY AND FLOWERS: Divide the unflavored buttercream evenly among 3 bowls and color each with 1 of the food colorings. Make 3 cornets from triangles of parchment paper, and fill one with pink buttercream, one with green, and one with yellow. Remove the buche from the refrigerator. Use the green icing cornet to make the ivy, by piping long curved lines along the length of the buche.
• Place small yellow dots along this stem, for the flower centers. Surround these with pink dots for the flower petals. Cut the tip of the cornet diagonally to make a point and fill it with green icing. Squeeze a dab of green buttercream out of the corner of each leaf.
• FINISHING THE BUCHE: Stick together the caps and ends of the mushrooms, using a dab of buttercream. Place the mushrooms, chocolate trees and chocolate fence on the buche. Dust the buche with powdered sugar and sprinkle with chocolate shavings. Refrigerate for 1 hour,then serve and enjoy!
• Sift together the cornstarch and half the sugar in a medium bowl, add the egg yolks and whisk until well combined. Pour the milk and remaining sugar into a 2-quart nonreactive heavy-bottomed saucepan and place over medium-high heat. While milk is heating, slice the vanilla bean in half lengthwise. Separate the seeds, and add both seeds and skin to the milk. Bring it to a boil. Carefully pour about half of the milk into the egg mixture, whisking so eggs don't scramble. Pour this mixture back into the saucepan and continue to whisk, as pastry cream thickens. Bring to a boil and continue to whisk and cook for 2 minutes more. Remove from heat, strain through a fine-mesh sieve, and add butter in small chunks if desired. Stir butter into cream until well incorporated. Pour pastry cream into an airtight container and put plastic wrap on top to prevent a skin from forming. Store in refrigerator for up to 3 days, until ready to use.
• SIMPLE SYRUP: Water, scant 1 1/4 cups Granulated sugar, 2/3 cup Liqueur, 2 1/2 tablespoons
• Place the water and sugar in a heavy saucepan over medium-high heat and bring to a boil, stirring occasionally. The sugar should completely dissolve. Remove from heat and pour into a mixing bowl. Cool before adding the liqueur.
• TEMPERED CHOCOLATE: When you melt chocolate, the molecules of fat separate. To put them back together, you temper it. One way to temper is to place the chocolate in the microwave, and microwave it on high power for 30 seconds at a time until the chocolate is melted. As it recrystallizes, it becomes tempered.

BUCHE DE NOEL (YULE LOG)

Steps:

• Make the cake: Preheat oven to 425 degrees. Butter the jelly-roll pan and line it with wax paper, leaving a 2-inch overhang on each of the short ends. Butter the paper and dust it with flour, shaking out the excess.
• In the large bowl of the upright mixer beat the egg yolks until smooth. Add 6 tablespoons of the granulated sugar, a little at a time, and beat the batter at medium speed for 3-4 minutes, or until creamy and light. Beat in the framboise. In another bowl with the hand-held mixer beat the egg whites with 1/8 teaspoon of the salt until frothy. Add the cream of tartar and beat the whites until they hold soft peaks. Add the remaining 2 tablespoons sugar, a little at a time, and beat the whites until they hold stiff peaks. Fold the whites into the batter gently but thoroughly. Sift the flour, the 1/4 cup cocoa powder, and the remaining 1/8 teaspoon salt over the batter, one third at a time, and fold in each addition until batter is smooth.
• Pour the batter into the jelly-roll pan, spread it evenly with a spatula, and bake the cake in the middle of the oven for 8-10 minutes, or until it pulls away from the sides of the pan and a cake tester inserted in the center comes out clean.
• Dust the cake lightly with cocoa powder, cover it with wax paper, and let it cool to warm. Pull the edges of the wax paper away from the pan, invert the cake onto a baking sheet and carefully peel off the paper. Dust the cake lightly with the remaining cocoa powder, cover it with wax paper, and roll it up. Let the cake cool completely.
• Make the chocolate butter cream: In the bowl of the upright mixer beat the egg yolks until light and creamy. In a small heavy saucepan combine the sugar with the water. Bring the mixture to a boil and cook it over moderate heat, stirring and washing down any sugar crystals clinging to the sides of the pan with the brush dipped in cold water, until the syrup reaches the soft-ball stage, or the candy thermometer registers 238 degrees. With the mixer running, add the hot syrup to the yolks in a stream, beating, and beat the mixture until completely cool. Beat in the butter and the chocolate, a little at a time. Pour the buttercream into a bowl, beat in the framboise, and chill the buttercream, covered, until the cake is ready to be frosted.
• To assemble the cake: Cut a 2-inch piece diagonally from each end of the cake and set the pieces aside. Transfer the cake to a serving tray and arrange the reserved end pieces on top of the cake to stimulate sawed-off branches. Beat the chilled buttercream until smooth and with a spatula spread it over the cake. Gently pull the tines of a fork lengthwise over the buttercream to simulate bark and garnish the log with the meringue mushrooms and chocolate leaves. Force the green almond paste through a medium sieve and with the tip of a small knife attach it to the log around the mushrooms to simulate moss. Gently dust the log with sifted confectioners' sugar, simulating snow. Let the cake come to room temperature before serving. Cut the cake with a sharp serrated knife.
• In a heavy saucepan combine the 1 cup sugar with the water and bring the mixture to a boil over low heat, washing down any sugar crystals clinging to the sides of the pan with the brush dipped in cold water until the sugar is dissolved. Boil the syrup until it reaches the soft-ball stage, or until the candy thermometer registers 240 degrees.
• While the syrup is cooking, in a bowl with the mixer beat the egg whites with the salt until foamy. Add the cream of tartar and beat the whites for 30 seconds. Sprinkle in the remaining 1 tablespoon sugar and beat the meringue for 10 minutes, or until cool.
• Preheat the oven to 200 degrees. Line baking sheets with the parchment paper. Fill the pastry bag fitted with the plain tip with the meringue and pipe out 66 mounds, each about 1-inch in diameter, 1-inch apart onto the baking sheets. Sift a bit of the cocoa over each cap, if desired, to simulate sand. Holding the pastry bag straight up, pipe out 66 medium-wide lengths onto the baking sheets, to resemble mushroom stems. Bake the meringues in the middle of the oven for 2 hours. Remove the baking sheet from the oven and with your finger tip push in the underside of each mushroom cap. Return the meringues to the oven and bake them for 30 minutes more. Turn off the oven and let the meringues stand in the oven overnight.
• Push a stem into each cap and chill.

BUCHE DE NOEL FROM JOY OF BAKING RECIPE - (4.6/5)

Steps:

• Chocolate Sponge Cake: Preheat oven to 350 degrees F (180 degrees C) and place the oven rack in the center of the oven. Butter, or spray with Pam, a 17 inch (43 cm) by 12 inch (30 cm) jelly roll pan. Line the pan with parchment paper and then butter and flour the paper (or spray with Baker's Joy). Set aside. While the eggs are still cold, separate the eggs, placing the whites in one bowl and the yolks in another. Cover with plastic wrap and bring to room temperature before using (takes about 30 minutes). Meanwhile melt the chocolate in a stainless steel bowl set over a saucepan of simmering water. Set aside. In the bowl of your electric mixer (or with a hand mixer) place the egg yolks and 1/4 cup (50 grams) of sugar and beat until this mixture is light and fluffy (about five minutes). (When you slowly raise the beaters, the batter will fall back into the bowl in a slow ribbon.) Beat in the vanilla extract. Add the melted chocolate and beat only to combine. Set aside while you beat the egg whites. In a clean mixing bowl, with the whisk attachment, beat the egg whites until foamy. Add the cream of tartar and beat at medium-high speed until soft peaks form. Gradually beat in the remaining 2 tablespoons (28 grams) of sugar until stiff peaks form. Gently fold a small amount of the egg whites into the egg yolk mixture using a rubber spatula or whisk to lighten the batter. Fold in the remaining whites just until incorporated. Don't over mix or the batter will deflate. Spread the batter evenly into the prepared pan with an offset spatula. Bake until the cake is puffed, has lost its shine, and springs back when gently pressed, about 15-17 minutes. Remove from oven and place on wire rack to cool. Cover the cake with a clean, slightly damp towel. Chocolate Whipped Cream: In a large mixing bowl place the whipping cream, vanilla extract, sugar, and cocoa powder and stir to combine. Cover and chill the bowl and beaters in the refrigerator for at least one hour so the cocoa powder has time to dissolve. Beat the mixture until stiff peaks form. Once the cake has cooled, spread with the chocolate whipped cream (set 2 tablespoons aside) and then gently roll the cake, peeling off the parchment paper as you roll. The sponge cake will crack, and, in fact, this makes it look more like a real log. Trim one end of the cake at an angle and set it aside. Then place the sponge cake, seam side down, on your serving platter. Take the slice of reserved cake and, using the reserved whipped cream, attach it to the side of the sponge cake (to look like the end of a branch). Cover with plastic wrap and chill until serving time. Just before serving remove the cake from the refrigerator, dust with confectioners (powdered or icing) sugar (to resemble snow), and decorate with meringue mushrooms (if desired). You can also decorate the Yule Log with miniature pine cones and pine needles.

BûCHE DE NOëL

Steps:

• Heat oven to 220C/200C fan /gas 7. Line a 23 x 33cm Swiss roll tin with baking parchment and oil lightly. Whisk the caster sugar and yolks in a bowl until pale and thick. Melt the chocolate with 4 tbsp cold water in a bowl set over a pan of simmering water. Stir in the sugar mix.
• Whisk egg whites to stiff peaks. Stir a spoonful into the chocolate, then fold in remaining using a large metal spoon. Pour batter into tin and bake for 12-14 mins until risen and just firm. Leave in tin until cold.
• Lay a sheet of baking parchment on a board. With one bold movement, turn the cake onto the paper, then lift off the tin. Carefully peel away the lining paper.
• Spread the whipped cream all over the cake, then scatter over the berries with a dribble of Drambuie, if you like. Starting at the long side opposite you, use the paper to roll the cake towards you. Transfer to a serving dish.
• For the buttercream, beat the butter, then sift in sugar and cocoa. Add milk and mix together. Spread over cake, use a fork to create a log effect, and chill until needed. Decorate, dust with icing sugar and serve.

BûCHE DE NOëL (A FRENCH CHRISTMAS DESSERT) RECIPE BY TASTY

Steps:

• Make the chocolate sponge cake: Preheat the oven to 350°F (180°C). Grease a roll cake baking pan or 18 x 13-inch (45 x 33 cm) baking sheet with nonstick spray and line with parchment paper.
• In a large bowl, whisk together the egg yolks and 3 tablespoons of sugar until the sugar is dissolved.
• Whisk in the milk, vegetable oil, and vanilla until smooth. Sift in the flour, cocoa powder, and cornstarch and whisk until smooth.
• In a large bowl with an electric hand mixer, or the bowl of a stand mixer fitted with the whisk attachment, whip the egg whites on medium speed until frothy, about 2 minutes. Add the cream of tartar and whip on medium-low speed for 2 minutes, then gradually add the remaining ½ cup (100 G) superfine sugar. Whip on medium-high speed until stiff peaks form, another 2-3 minutes.
• Fold the egg white mixture into the egg yolk mixture until just combined, taking care not to overmix.
• Spread the batter evenly on the prepared pan. Bake for 12-15 minutes, until fluffy and the cake springs back when gently pressed.
• Drape a kitchen towel over the cake and set a wire rack on top. Carefully invert the cake onto the rack, peel back the parchment from the bottom, and let cool for 10 minutes. Carefully roll the cake into a log with the towel inside and allow to cool completely.
• While the cake cools, make the chocolate hazelnut buttercream: In a large bowl, beat the butter and powdered sugar with an electric hand mixer on low speed until combined. Increase the speed to high and whip for 2-3 minutes, until light and fluffy.
• Reduce the speed to low and add the milk, vanilla, and salt. Whip again for 2-3 minutes until well incorporated and the buttercream is light, bright white, and fluffy.
• Fold in the chocolate-hazelnut spread with a rubber spatula. Cover with a kitchen towel or place wrap and set aside at room temperature.
• Make the ganache: Place the chopped chocolate in a medium bowl. Pour the hot cream over the chocolate. Stir until the chocolate is melted. Refrigerate the ganache for at least 30 minutes to firm.
• Make the meringue mushrooms: Reduce the oven temperature to 200°F (93°C). Line a baking sheet with parchment paper.
• In a medium bowl, beat the egg whites and cream of tartar with an electric hand mixer until soft peaks form, about 3 minutes.
• Gradually add the sugar and whip until dissolved and stiff peaks form, about 2 minutes more. The mixture should be glossy, shiny, and very stiff.
• Transfer the mixture to a piping bag fitted with a medium round tip. Pipe half of the meringue onto the prepared baking sheet in ½-1 inch (2.54 cm) wide circles resembling mushroom caps. Use your fingers to gently press down any peaks. Pipe the remaining meringue into ½-1 inch (2.54 cm) long stems. Dust the mushrooms with cocoa powder.
• Bake for 1½-2 hours, until the mushrooms are completely dried and hard to the touch. Turn off the oven and leave the mushrooms dry out in the oven for at least 30 minutes, or up to overnight. The mushrooms can be made 1-2 days ahead.
• Assemble the mushrooms: Dip the flat sides of the mushroom caps in the melted chocolate and attach the mushroom stems. Stand the mushrooms upright and let dry, 30-45 minutes.
• Make the sugared cranberries and rosemary: Line a baking sheet with parchment paper and top with a wire rack.
• In a small saucepan, combine 1 cup (200 G) sugar and the water. Bring to a boil, whisking to dissolve the sugar. Drop the cranberries into the syrup and stir to coat, then remove with a slotted spoon and transfer to one side of the wire rack. Let cool for at least 1 hour, until no longer sticky, then sprinkle cranberries with ¼ cup (25 G) sugar. Set aside.
• Bring the remaining syrup to a boil. Add the rosemary sprigs and stir to coat, then remove with a slotted spoon and transfer to the other side of the wire rack. Let cool for at least 1 hour, then sprinkle rosemary with the remaining ¼ cup (25 G) sugar. Set aside.
• Assemble the bûche de noël: Unroll the sponge cake.
• Spread 2 cups (230 G) of the chocolate-hazelnut buttercream. evenly over the cake, leaving a 1-inch (2.54 cm) border around all sides.
• Starting from one end, using the towel to help guide the rolling, roll the cake into a tight spiral. Place the cake, seam-side down, in the refrigerator to set, at least 30 minutes, or up to overnight.
• Unwrap the cake log from the towel and set on a serving platter.
• Remove the ganache from the fridge and transfer to a piping bag fitted with a medium star tip.
• Trim 2½ inches (6 cm) ( off one end of the cake log and attach to the center of the log with 2 tablespoons of the ganache to resemble a stump.
• Cover the entire log, starting at one end and piping lengthwise, with ganache.
• Arrange the sugared rosemary and cranberries and meringue mushrooms around the log. Dust with powdered sugar to resemble snow.
• The cake will keep in the refrigerator, covered, for up to 3 days.
• Slice and serve.
• Enjoy!