The Best Onion Gratin Recipes

Steps:

• Cut onions into 1/2-in. slices; saute in butter until tender. Place in a greased 8-in. square baking dish. , In a small bowl, stir the flour, broth, cream, salt and pepper until smooth; pour over onions. Sprinkle with cheeses. , Bake, uncovered, at 350° for 25-30 minutes or until cheese is golden brown and mixture is bubbly.

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!

Steps:

• Saute onions in butter.
• Place onions in a 9 x 13 casserole dish with a slotted spoon.
• Stir in heavy whipping cream, white wine, and black pepper. Mix well.
• Top with cheeses.
• Bake at 375 degrees for 15-20 minutes.

Steps:

• In a large size heavy skillet melt the butter and cook the onions over medium heat until soft, between 15 and 20 minutes, stirring frequently with a wooden spoon. You do NOT want the onions to be crunchy later.
• Add flour, stirring, and cook about 1 minute.
• Gradually stir in milk and cook 4 minutes; add cream, salt, and pepper.
• Remove skillet from stove top and set aside to cool slightly.
• Preheat oven to 400*F.
• When oven is pre-heated, taste sauce and adjust with more salt and pepper to suit your taste preferences (I like to add quite a bit more pepper).
• After taste adjustment, add 1 beaten egg to the cooled onion mixture and whisk thoroughly to combine.
• Pour the onion sauce into a lightly sprayed pie dish.
• Cover with layer of egg slices and sprinkle with cheese.
• Bake until lightly browned, about 15 minutes-depends upon your oven.
• Top with bacon crumbles.
• Allow to set for 5 minutes so that it will set up and be easier to plate.

Steps:

• Preheat oven to 400°F.
• Break the onion quarters apart to give you little "petals".
• Place these in an A4 sized dish or earthenware oven dish.
• Drizzle with olive oil, add salt and pepper, and toss in the thyme and garlic.
• Mix well, add white wine and cover tightly with two layers of tinfoil.
• Bake for 45 minutes, then remove tinfoil, and put back in oven for 15 minutes until slightly golden.
• Stir in creme fraiche (or sour cream) and sprinkle with cheeses.
• Turn oven down to 350F and put back in oven until cheese is golden and melted, about 15 minutes.
• You can eat right away, or cool it down and flash it under the grill when the guests arrive.
• Enjoy!

Steps:

• Bosc pears are strong-flavored and hold their shape when cooked, making them well suited for this savory side dish. It's a terrific accompaniment for a glazed ham or grilled sausage or most any roasted meat or poultry.;
• Fill a large bowl three-quarters full with water; add a handful of ice cubes. Cut onion into 16 wedges, place in a strainer and lower into the water. Let stand for 20 minutes.
• Preheat oven to 400degreesF.
• Halve and core each pear; cut each half into 6 slices. Drain the onion wedges well and place them in a 9-by-13-inch glass baking dish along with the pear slices, 1 tablespoon oil, thyme, salt and a grinding of pepper; toss to combine. Cover with foil.
• Roast for 30 minutes, stirring twice.
• Meanwhile, combine breadcrumbs and cheese in a small bowl. Drizzle with the remaining 2 tablespoons oil; stir to combine. Remove the pan from the oven, sprinkle the crumb mixture evenly over the gratin, return to the oven and roast until the breadcrumbs are well browned, 20 to 30 minutes more. Let cool for 10 minutes before serving.
• Recipe Tips & Notes:
• 1. Note: We like to use the Ian's brand of coarse dry breadcrumbs, labeled "Panko breadcrumbs." Find them in the natural-foods section of large supermarkets.
• 2. To make your own breadcrumbs: Trim crusts from firm sandwich bread. Tear the bread into pieces and process in a food processor until coarse crumbs form. One slice makes about 1/3 cup. Spread the breadcrumbs onto a baking sheet and bake in a 250degreesF oven until dry and crispy, about 15 minutes.
• Recipe Nutrition:
• Per serving: 188 calories; 7 g fat (1 g saturated fat, 4 g mono unsaturated fat); 3 mg cholesterol; 29 g carbohydrates; 4 g protein; 4 g fiber; 225 mg sodium; 215 mg potassium
• Nutrtion Bonus: Vitamin C (15% daily value).
• 2 Carbohydrate Servings
• Exchanges: 1/2 starch, 1 fruit, 1 vegetable, 1 fat

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!

Steps:

• Preheat oven to 400 degrees F (200 degrees C). Butter a medium casserole dish.
• Layer 1/2 of the potatoes into bottom of the prepared casserole dish. Top with the onion slices, and add the remaining potatoes. Season with salt and pepper to taste.
• In a medium-size saucepan, melt butter over medium heat. Mix in the flour and salt, and stir constantly with a whisk for one minute. Stir in milk. Cook until mixture has thickened. Stir in cheese all at once, and continue stirring until melted, about 30 to 60 seconds. Pour cheese over the potatoes, and cover the dish with aluminum foil.
• Bake 1 1/2 hours in the preheated oven.

Steps:

• Bring a pot of water to a boil and add salt. Preheat the oven to 400°F.
• Drop the onions into the water and leave them there for a minute. Peel them, then put them in a buttered ovenproof dish large enough to hold them in one layer. Sprinkle them with salt, pepper, and a little nutmeg, then pour the cream over all. Bake until the top is brown and the onions are soft, about 30 minutes.