Potato Onion Gratin Recipes

CARAMELIZED VIDALIA ONION AND POTATO GRATIN WITH FRESH SAGE

Steps:

• Preheat oven to 375 degrees F.
• Heat oil and butter in a large saute pan over medium-high heat. Add the onions, season with salt and pepper and cook until caramelized, about 15 to 20 minutes. Remove from the heat and stir in the sage. Let cool slightly.
• Make a layer of potato slices in a 10 by 10 by 2-inch casserole, season to taste with salt and pepper, spread 1/12 of the onion mixture over the potatoes and coat with 2 tablespoons of the cream. Repeat each step to yield 12 layers. Press down gently on the layers, place the dish on a sheet pan and bake, covered for 25 minutes. Remove cover and bake for another 20 to 25 minutes, or until the potatoes are tender and golden brown on top. Let rest 10 minutes before serving.

POTATO GRATIN

Steps:

• Preheat the oven to 400 degrees F.
• Add the cream and milk to a large saucepan over medium-low heat and bring to a gentle simmer. Add the nutmeg, a big pinch of salt and some pepper. Meanwhile, slice the potatoes on a mandoline to 1/8-inch thick. Place the potatoes in the warm cream mixture and simmer gently until the potatoes are two-thirds of the way cooked and the cream has thickened, about 15 minutes.
• Place a 9-by-12-inch flameproof gratin dish on the stove over low heat. Brush the bottom and the sides with the melted butter. Spread the garlic around the bottom of the dish. Cook just long enough to toast the garlic in the butter, 3 to 4 minutes. Add a layer of the potato mixture. Combine the Gruyere and Parmesan in a bowl, then sprinkle a third of the cheese over the potatoes. Repeat the layering 2 more times, finishing with the remaining cheese. Pick the thyme leaves and sprinkle over the top, mixing with last layer of cheese. Place the gratin dish on a rimmed baking sheet and bake until bubbly and golden, 45 to 50 minutes (see Cook's Note).

POTATO GRATIN WITH SPRING ONIONS

Steps:

• Preheat the oven to 375 degrees F. Combine the heavy cream, thyme, bay leaves, garlic and nutmeg in a medium saucepan. Bring to a gentle simmer over medium heat. Add the spring onion whites and simmer until just starting to soften, about 5 minutes. Season with 1 1/2 teaspoons salt and a few grinds of pepper. Remove the thyme sprigs and bay leaves. Stir in about half of the spring onion greens.
• Spread the potatoes in a 9-by-13-inch baking dish. Pour the cream mixture over the top and gently stir, pressing and submerging the potatoes to make an even layer. Cover with foil and bake until the potatoes are tender and the cream is bubbling, 45 to 55 minutes.
• Uncover the potatoes and sprinkle with the cheese. Bake until the cheese is golden, 10 to 15 minutes. Let cool 15 minutes. Sprinkle with the remaining spring onion greens just before serving.

CREAMY POTATO GRATIN WITH CARAMELISED ONIONS

Steps:

• Up to 2 days before serving, heat oven to 200C/180C fan/gas 6. Heat the oil in a large frying pan. Add the onions and thyme, cover, and cook over a gentle heat for 10-15 mins until softened and caramelised. Pour the cream and milk into a large bowl and season well. Add the potatoes and mix to combine.
• Butter a 23 x 28cm ovenproof dish, then layer in half the potatoes. Spread the onion mixture on top, then layer on the remaining potatoes. Press down with your hands. Pour over the milk mixture, which should come just level with the potatoes. If not, add a little more milk until it does. Cover with foil, then bake for 11⁄2 hrs until tender. Remove from the oven and leave to cool. Cover and store in the fridge.
• On the day, heat the oven to 220C/200C fan/gas 7. Uncover the gratin, spread the crème fraîche on top, then sprinkle over the Parmesan. Put in the oven and cook for 30 mins until the cheese is melted, the top crisp and golden brown, and the gratin piping hot. Serve garnished with extra thyme.

POTATO GRATIN WITH CARAMELIZED ONIONS

Steps:

• In saucepan, bring cream, garlic, peppercorns, thyme and salt to boil, reduce heat to low, cover and simmer for 15 minutes.
• Remove from heat and set aside.
• Meanwhile, in nonstick frypan, heat oil over medium low heat; cook onion, stirring often, until light brown, about 45 minutes.
• Slice potatoes as thinly as possible, use mandoline if available.
• Layer one quarter of the potatoes in greased 8 inch square glass baking or casserole dish; top with one third of the onion and one quarter of the cheese.
• Repeat twice.
• Top with remaining potatoes.
• Strain cream mixture over potatoes, shaking casserole to distribute evenly; sprinkle with remaining cheese.
• Bake at 300f degree oven until tender and knife inserted in bottom pierces potatoes easily, 1 1/2 to 2 hours.
• (Make ahead: let cool; cover and refrigerate for up to 2 days. Reheat in 375f degree oven for 30 minutes.).

WARM ONION-POTATO GRATIN

Steps:

• Combine Yukon Gold potatoes and sliced onions in heavy large saucepan. Add enough water to cover. Bring water to boil. Reduce heat and simmer until potatoes are almost tender, about 3 minutes. Drain potato-onion mixture well.
• Arrange half of potato-onion mixture in 11x7-inch glass baking dish. Sprinkle with salt and pepper. Sprinkle mixture with 1/3 cup Gruy&ère cheese, then 2 tablespoons Parmesan cheese. Arrange remaining potato-onion mixture atop cheeses. Pour cream over. Sprinkle with salt and pepper, then remaining 2/3 cup Gruy&ère cheese and 6 tablespoons Parmesan cheese. (Can be prepared 8 hours ahead. Cover and refrigerate.) Preheat oven to 400°F. Bake gratin uncovered until cream thickens, about 25 minutes. Remove from oven. Preheat broiler. Broil gratin until top is golden, about 2 minutes.

POTATO-ONION GRATIN

Steps:

• Heat 2 tablespoons oil in large skillet over medium-high heat.
• Add onions and garlic; sprinkle with salt and pepper.
• Saute until onions are golden, about 8 minutes.
• Add thyme and rosemary, saute 2 minutes.
• Preheat oven to 425 degrees F.
• Brush 11x7/2 inch glass baking dish with oil.
• Arrange 1/3 of potatoes in dish.
• Sprinkle with 1/4 teaspoon each of salt and pepper.
• Top potatoes with half of onion mixture.
• Repeat potatoe and onion mixture layer.
• Top (final layer) with potatoes.
• Pour broth over.
• Drizzle with 1 tablespoon oil.
• Cover dish with foil.
• Bake potatoes 30 minutes.
• Uncover and continue to bake until potatoes are tender and golden, about 25 minutes longer.
• Let stand 10 minutes and serve.

FRENCH ONION SOUP POTATO GRATIN

Steps:

• For the caramelized onions: In a large saucepan over medium-high heat, melt the butter. Once melted and bubbling, add a large handful of the onions and cook until translucent, 1 to 2 minutes. Repeat until all the onions have been added. Season with a pinch of salt and black pepper. Reduce the heat to low and cook, stirring occasionally, until the onions turn medium brown, about 30 minutes. If the onions start to get too dark, add 1 to 2 tablespoons of beef stock as necessary. Add the sherry to deglaze the pan. Add the mustard and stir to coat. Season with salt and pepper. Remove from the heat and set aside.
• For the potato gratin: Preheat the oven to 400 degrees F.
• Using a mandoline or a sharp knife, cut the potatoes into thin slices. Do your best to keep the potatoes in a stack--this will make it easier to layer them in the pan. Set the potatoes aside.
• Use the reserved butter wrapper to lightly grease the bottom and sides of a large (12-inch) cast-iron skillet. Discard the wrapper.
• Arrange a thin shingled layer of potatoes in concentric circles around the skillet. Season the potatoes with salt and pepper, then arrange an even layer of caramelized onions on top of the potatoes. Season with salt and pepper.
• In a medium bowl, combine the Gruyere and mozzarella and reserve half for later use. Sprinkle on a layer of the remaining cheese mixture over the onions. Repeat the layers until all the ingredients (not including the reserved cheese) have been used. Press down firmly on the layers to flatten.
• In a large bowl or measuring cup, combine the heavy cream and beef stock and pour over the gratin. Cover the skillet with foil and place on a sheet pan. Bake the potatoes, covered, until the top and edges have begun to brown and the potatoes are tender, 1 hour 15 to 1 hour 30 minutes. You can test by inserting a knife into the potatoes; if it goes in and comes out without resistance, then the potatoes are done.
• Remove the skillet from the oven, remove the foil and turn the broiler on high. Combine the croutons and French fried onions. Cover the gratin with a layer of the crouton mixture followed by the remaining cheese. Broil until golden brown and bubbly, 5 to 8 minutes. Serve and enjoy!

SWEET POTATO-ONION GRATIN

Steps:

• Prepare a grill for medium-high heat. Preheat the oven to 350 degrees F. Grease a 9-by-13-inch baking dish with the butter.
• Oil the sliced sweet potatoes and onions with the canola oil and sprinkle with salt and pepper. Grill the sweet potatoes and onions until slightly charred on each side and just halfway cooked. Set aside.
• Combine the half-and-half, horseradish, thyme, 2 teaspoons salt and 1 teaspoon pepper in a bowl. Sprinkle one-third of the Gruyere in an even layer over the bottom of the prepared baking dish. Layer one-third of the grilled sweet potatoes and onions on top of the Gruyere. Repeat twice¿one-third of the cheese, one-third of the vegetables¿to create three even cheese-vegetable layers. Pour the half-and-half mixture over the top, cover with foil and bake for 35 to 40 minutes. Uncover and continue baking until the sweet potatoes are tender and the gratin is golden brown, another 15 to 20 minutes. Let rest for 15 minutes before serving.

POTATO, TOMATO AND ONION GRATIN

Steps:

• Bring pot of water to boil. Add tomatoes and blanch 10 seconds. Drain tomatoes. Peel, core and slice tomatoes. (Can be made 6 hours ahead; cover and chill).
• Preheat oven to 400°F
• Arrange half the potatoes in a shallow baking dish (15 cup capacity). Season with salt and pepper. Top with half the onions and half the tomatoes. Sprinkle with half the garlic and half the thyme. Season with salt and pepper. Repeat layering with remaining potatoes, onions, tomatoes, garlic and thyme. Season with salt and pepper. Pour wine and olive oil over. Bake until potatoes are tender and almost all the liquid evaporates, about 90 minutes.
• Melt butter in a heavy large skillet over medium-high heat. Add breadcrumbs and saute until golden brown, about 5 minutes. Sprinkle breadcrumbs over gratin. Cool 10 minutes and serve.

APPLE, POTATO AND ONION GRATIN

Steps:

• preheat oven to 400 degrees. butter a 13x9 pyrex.
• melt 6 T butter in a large nonstick skillet over medium heat. add onion, thyme and 2 t salt; saute until onion are translucent, about 10 minutes.
• increase heat to medium-high; saute until onion are tender and begin to color, about 8 minutes longer. remove from heat. add remaining 6 T butter, 2/3 c water, wine, and sugar to skillet; stir and swirl skillet to combine. bring to a boil, then cool onion mixture to lukewarm.
• combine potatoes, apples, remaining 2 t salt and onion mixture in large bowl; toss gently to blend.
• transfer to prepared baking dish, spreading evenly. cover dish with parchment paper, then cover with foil, shiny side down.
• bake gratin until potatoes are tender, about 55 minutes. uncover and bake until top browns and juices bubble thickly, about 20 minutes longer.
• (can be made 6 hours ahead. let stand uncovered at room temperature. rewarm, loosely covered with foil, in 300 degree oven for 20 minutes.) let gratin stand 15 minutes before serving.