Cheesy Celery Potato Gratin Recipes

Steps:

• Preheat the oven to 375 degrees F.
• Melt the butter in a large saucepan over medium heat. Add the onions, then season with salt and cook until the onions are soft and very aromatic, 5 to 7 minutes. Add the garlic and cook for another 2 to 3 minutes. Whisk in the flour and cook until the roux is the consistency of wet sand, 3 to 4 minutes. Whisk in the milk, bring to a boil and cook for 5 to 6 minutes. Turn off the heat and whisk in the mustard and cheeses. Season with salt to taste to make sure it is delicious!
• Place a quarter of the potatoes in the bottom of a 9-by-13-inch baking dish. Ladle a quarter of the cheese sauce evenly over the potatoes. Repeat this process 3 or 4 more times with the remaining potatoes and sauce, pushing down the potatoes between each layer and topping with the sauce. Place the baking dish on a sheet tray lined with foil. Bake, rotating the dish halfway through, until the potatoes are soft when poked with a fork, 50 to 60 minutes. Tent with foil if the top is getting too brown.
• Let sit for 15 to 20 minutes before serving.
• Hot cheesy potatoes!

Steps:

• Preheat the oven to 300 degrees F.
• Melt 4 tablespoons of the butter in a large, oven-safe high-sided skillet over medium-high heat. When the foam subsides, add the flour and cook, stirring constantly, until it has the consistency of wet sand, about 3 minutes. Remove from the heat and whisk in the milk, little by little.
• Put the saucepan over high heat and bring to a boil, whisking constantly. Lower the heat and whisk in 2 cups of the Cheddar, 2 cups of the Gruyere, the garlic, pepper and salt. Whisk until the cheese is melted, then stir in the nutmeg. Add the sliced potatoes to the pan. Scatter the remaining 2 tablespoons butter and the remaining 1 cup Cheddar and 1 cup Gruyere over the top.
• Bake in the oven for 45 minutes, then increase the oven temperature to 400 degrees F., and bake until the potatoes are fork-tender and the top is bubbly and golden brown, about 15 minutes more. (Cover the dish with foil if the top becomes too dark before the potatoes are tender.) Scatter the chopped parsley over the top, and serve.

Steps:

• Heat the olive oil and cook the onions until golden, about 10 minutes; if the onions stick, add some water Add the garlic, celery and celery salt and wine and cook until wine has almost entirely evaporated; add the tomatoes and their juices and broth and simmer for 5 minutes to bring the flavors together and thicken slightly.
• Parboil the potatoes for 5 minutes; drain and pat dry; parboil celery root for 3 minutes; drain and pat dry.
• Preheat the oven to 375 degrees. Lightly oil a shallow wide baking dish (gratin dish) which will accommodate the 2 layers of potatoes and celery root.
• Spread a third of the tomato mixture in the bottom of the dish and top with alternating slices of parboiled celery root and potatoes; season carefully with salt and pepper. Top with tomato sauce, then layer potatoes and celery root and cover with sauce.
• Cover dish and bake for 45 minutes or until ingredients are completely tender. Serve hot, warm or at room temperature.

Steps:

• Preheat oven to 375°. In a large saucepan, melt 6 tablespoons butter over medium heat. Stir in flour until smooth; gradually whisk in milk and cream. Bring to a boil, stirring constantly; cook and stir until thickened, 3-4 minutes. Stir in cheese, salt, pepper and nutmeg until combined. Stir in celery and leaves; transfer to a greased 13x9-in. baking dish., Tear bread into pieces and place in a food processor or blender. Cover and pulse until crumbs form. Transfer to a large bowl. Melt remaining 2 tablespoons butter. Drizzle over bread crumbs; toss to coat. Sprinkle over celery mixture., Bake until bubbly and topping is golden brown, 25-30 minutes. If desired, sprinkle with additional celery leaves.

Steps:

• Preheat oven to 400° F. Mix salt, pepper and nutmeg in small bowl. Sprinkle half of shallots in 16-cup oval gratin dish or 15x10x2-inch glass baking dish. Top with half of celery root and half of potatoes. Sprinkle half of spice mixture over. Repeat layering with remaining shallots, celery root, potatoes and spice mixture. Bring cream and broth to simmer in medium saucepan. Pour over vegetables. Cover tightly with foil.
• Bake until vegetables are almost tender, about 45 minutes. Increase oven temperature to 450° F. Press potatoes with spatula to even thickness. Bake uncovered until juices thicken, about 10 minutes. Top with cheese. Bake until cheese melts and browns, about 15 minutes. Cool 15 minutes before serving.