Sweet Potato Gratin With Carmelized Onion Recipes

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.

Steps:

• Preheat oven to 375°F. Oil a 8" x 8" baking dish. In a skillet, heat butter and add onions and garlic on low heat and cook for 15 minutes. Place 1 layer of sliced potatoes overlapping slightly, 1 layer of onions, drizzle cream and sprinkle with parsley, and 1/4 cup of parmesan. Continue to make layers until the dish is filled. Sprinkle remaining parmesan to top layer. Cover with foil and bake for 40 minutes and then uncover and continue baking for another 25 minutes until potatoes are tender and top is brown. Let it rest for 15 minutes. Additional Notes: Substitute parmesan with goat cheese.

Steps:

• Heat oven to 400 degrees and generously butter a 9-by-13-inch baking pan or shallow gratin dish. Butter a piece of foil large enough to cover top of pan. Sprinkle Parmesan all over bottom of pan.
• In a medium pot, bring cream, sage, rosemary, garlic, nutmeg and a pinch of salt to a simmer. Simmer until reduced by 1/4, about 10 minutes.
• In a large, heatproof bowl, whisk eggs just enough to break them up. Slowly pour hot cream into eggs to combine, whisking while pouring, and reserve the mixture.
• Meanwhile, using a mandoline or sharp knife, slice the potatoes into 1/8-inch-thick rounds.
• Place 1 layer of potatoes in the pan, slightly overlapping as you go, using about a third of the slices. Sprinkle with 1/4 teaspoon salt and pepper to taste, then pour 1/3 of the egg mixture over potatoes. Top with 1/2 cup Gruyère. Repeat with another layer of potatoes, 1/2 teaspoon of salt, pepper and 1/3 egg mixture. Top with 1/2 cup Gruyère. Top with remaining potatoes, 1/4 teaspoon salt, pepper to taste, and remaining egg mixture (but not the remaining cheese). Press down to compact the potatoes. Cover with foil and bake until potatoes are tender, about 40 minutes, then remove foil, sprinkle top with remaining 2/3 cup Gruyère and bake until browned and bubbling, 25 to 30 minutes. Let cool slightly, then serve.

Steps:

• Preheat oven to 350 degrees F.
• Use one tablespoon of butter to grease a 9 by 13-inch baking or gratin dish. Mix together orange juice, brown sugar, and spices, then add pineapple. Layer slices of sweet potatoes in the dish, then dot with butter. Top with pineapple mixture. Season each layer with salt and pepper. Repeat this process until all sweet potatoes are used up, ending with pineapple mixture.
• Bake in oven for 40 to 45 minutes until sweet potatoes are tender when a pairing knife is inserted. Baste gratin with excess juices every 10 minutes. The top should be bubbly and brown. If the top gets too brown or starts to burn, cover with aluminum foil and continue cooking until sweet potatoes are done.

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.

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.

Steps:

• Preheat an oven to 450 degrees F (230 degrees C). Scrub and dry the sweet potatoes, then prick several times with a fork and place onto a baking sheet. Bake in the preheated oven until the sweet potatoes are easily pierced with a fork, 50 minutes to 1 hour.
• Heat the oil in a large skillet over medium heat. Stir in the onion and bell pepper; cook and stir until the onion has softened and turned translucent, about 5 minutes. Reduce heat to medium-low, and continue cooking and stirring until the onion is very tender and dark brown, 20 to 30 minutes more.
• Split open the baked sweet potatoes and top with the onion mixture, salt, pepper, and a dollop of sour cream.