White Chocolate Genoise Italian Sponge Cake Recipes

CHOCOLATE GENOISE

Steps:

• Heat oven to 350 degrees. Butter a 10 1/2-by-15 1/2-by-1-inch jelly-roll pan. Line with parchment; butter and flour paper, tapping out the excess flour.
• Sift flour, cocoa, and baking soda together twice into a medium bowl. Set aside. In a small saucepan over low heat, melt butter. Skim off white foam, and pour clear yellow butter into a bowl, discarding white liquid at the bottom. Set aside in a warm place.
• In a medium-size heat-proof bowl, whisk together eggs and sugar. Set bowl over a pan of simmering water; stir until mixture is warm to the touch and sugar has dissolved. Remove from heat, and beat on high speed until mixture is thick and pale and has tripled in bulk. Reduce speed to medium, add vanilla, and beat 2 to 3 minutes more.
• In three additions, sift flour mixture over egg mixture, folding in gently with a spatula. While folding in last addition, dribble melted butter over batter and fold in.
• Spread batter evenly in pan, leaving behind any unincorporated butter in the bottom of the bowl. Tap pan on counter to remove air bubbles. Bake until cake springs back when touched in center, 15 to 20 minutes. Don't overbake or cake will crack. Let sit in pan on a wire rack until cool enough to handle.
• Dust surface with cocoa powder. To make rolling easier, trim edges of cake, and cover with a sheet of waxed paper and a damp dish towel. Invert onto a work surface, and peel off parchment; dust with cocoa. Starting from one long end, carefully roll up cake in towel. Wrap in plastic; refrigerate until ready to use.

WHITE CHOCOLATE GENOISE (ITALIAN SPONGE CAKE)

Steps:

• Line the bottom of a greased 8 1/2 inch springform pan with wax paper, grease the paper and dust the pan with flour, knocking out the excess.
• In a metal bowl set over a pan of barely simmering water melt the white chocolate with the butter, the vanilla and 3 tablespoons water, stirring until the mixture is smooth.
• Remove the bowl from the heat and let the mixture cool.
• Into a bowl sift together the flour and the salt.
• In a large bowl with an electric mixer beat the eggs with the sugar on high speed for 5 minutes, or until the mixture is triple in volume and forms a ribbon when the beaters are lifted.
• Fold the flour mixture into the egg mixture until the batter is just combined and fold in the white chocolate mixture gently but thoroughly.
• Pour the batter into the pan, smoothing the top, and bake the cake in the middle of a preheated 350 degree oven for 25 minutes, or until a tester comes out clean.
• Transfer the cake to a rack, run a sharp knife around the edge, and remove the side of the pan.
• Invert the cake onto another rack and remove the wax paper.
• Reinvert the cake onto the rack and let it cool completely.