Best French Onion Soup Potato Gratin Recipes

FRENCH ONION POTATOES

Steps:

• Preheat the oven to 400 degrees F (200 degrees C). Lightly grease a 9x13-inch baking dish with cooking spray.
• Place a layer of sliced onions on the bottom of the baking dish. Add a sprinkle of French onion soup mix and a layer of bacon pieces, followed by layers of potato slices, shredded cheese, and cream. Continue adding layers of the remaining ingredients, ending with a layer of shredded cheese on the top.
• Spray a piece of aluminum foil with cooking spray and cover the baking dish.
• Bake in the preheated oven until potatoes and onions are tender, 40 to 50 minutes. Remove foil and continue baking until nicely browned and bubbly, about 10 minutes more.

FRENCH ONION POTATO GRATIN

Steps:

• Position a rack in the middle of the oven and crank the heat to 375°F (190°C). Generously butter a 2-quart (1.9 L) casserole dish.
• In a large skillet over medium-high heat, melt the butter.
• Scoop in the mushroom and onion slices and stir to coat. Season with salt and pepper. Continue to cook, stirring occasionally, until the mushrooms and onions are softened and browned, 13 to 15 minutes.
• Toss in the garlic and thyme and cook until fragrant, 1 to 2 minutes. Stir in the nutmeg. Remove the skillet from the heat.
• Using a mandoline or sharp knife, carefully cut the potatoes into 1/8-inch (3 mm) thick slices.
• Line the bottom of the prepared casserole dish with a double layer of potato slices, overlapping slightly-kind of like playing cards. Sprinkle lightly with salt and pepper.
• Scoop about 1/3 of the mushroom-onion mixture into the dish and spread over the potatoes. It won't cover it fully, but that's okay.
• Sprinkle 1/3 of the cheese over the top.
• Repeat layering the potatoes, salt and pepper, mushroom-onion mixture, and cheese, two more times.
• Slowly pour the cream into a crevice along the side, being mindful not to wash away the cheese on top.
• Slide the casserole into the oven and bake until the potatoes are fork-tender and the top is golden brown, 50 to 60 minutes. If the top browns too quickly, cover it with foil halfway through baking.
• Remove the casserole from the oven and let sit for 20 minutes before serving.

POTATOES GRATIN

Steps:

• Preheat the oven to 375 degrees F. In a large bowl combine all the ingredients, tossing to coat. Season with salt and pepper. Put the potato mixture into a casserole dish, flatten it out with a spatula, and bake for 40 minutes, until the potatoes are tender and the gratin is bubbly. Let stand for 10 minutes before serving. Garnish with fresh chives.

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).

ONION SOUP GRATIN

Steps:

• In a large heavy pot, melt the butter over medium heat. Stir in the leeks, onions and shallots and toss to coat with the butter. Cook onions until they begin to soften. Cover and continue to stir occasionally. When the onions begin to turn golden, turn up the heat to medium high and add the pinch of sugar and nutmeg. Continue to cook until onions turn a rich golden brown. Season onions with salt and pepper. Add red wine and bring to a simmer. Cook for 3-5 minutes. Pour in warm stock and bring to a simmer. Preheat oven to 400 degrees. Ladle soup into ovenproof bowls and place bowls on baking sheet. Top each bowl with slice of bread and sprinkle with cheese. Bake for 15 minutes or until bubbly.

JACQUES PEPIN'S ONION SOUP GRATINEE

Steps:

• Melt the butter in a large saucepan and saute the onions over medium high heat for about eight minutes or until they are lightly browned.
• Add stock, salt and pepper (if your stock is salted, do not add additional salt) and boil gently for about 15 minutes.
• In the meanwhile, pre-heat the oven to 400°F.
• Toast the baguette slices in the oven.
• Place one or two slices of baguette in the bottom of each of four ovenproof crocks.
• Add 1/4 cup of grated cheese to each crock and place the crocks on a cookie sheet.
• Ladle the onion and stock mixture into the crocks.
• Top with the remaining grated cheese, pressing some of the cheese against the lip of each crock.
• Bake for 35 to 45 minutes or until cheese is beautifully browned.
• In the last few moments, place the remaining baguette slices in the oven to warm.
• Serve the soup immediately with the toasted slices of baguette.

FRENCH ONION SOUP GRATINEE

Steps:

• Melt butter in a large pot over medium-high heat. Stir in salt, red onions and sweet onions. Cook 35 minutes, stirring frequently, until onions are caramelized and almost syrupy.
• Mix chicken broth, beef broth, red wine and Worcestershire sauce into pot. Bundle the parsley, thyme, and bay leaf with twine and place in pot. Simmer over medium heat for 20 minutes, stirring occasionally. Remove and discard the herbs. Reduce the heat to low, mix in vinegar and season with salt and pepper. Cover and keep over low heat to stay hot while you prepare the bread.
• Preheat oven broiler. Arrange bread slices on a baking sheet and broil 3 minutes, turning once, until well toasted on both sides. Remove from heat; do not turn off broiler.
• Arrange 4 large oven safe bowls or crocks on a rimmed baking sheet. Fill each bowl 2/3 full with hot soup. Top each bowl with 1 slice toasted bread, 2 slice Gruyere cheese and 1/4 of the Asiago or mozzarella cheese. Sprinkle a little bit of paprika over the top of each one.
• Broil 5 minutes, or until bubbly and golden brown. As it softens, the cheese will cascade over the sides of the crock and form a beautifully melted crusty seal. Serve immediately!