Best 2 French Onion Soup Burgers Recipes

FRENCH ONION SOUP BURGERS

Steps:

• Melt 2 tablespoons of the butter in a large saute pan over medium heat. Add the bacon and cook until some of the fat has rendered and the bacon is just starting to crisp, about 2 minutes. Reduce the heat to medium low and add the onion, thyme, 1/4 teaspoon salt and a few grinds of pepper. Cook, stirring occasionally, until the bacon is very crisp and the onions are deep golden brown and caramelized, about 15 minutes. If the pan is getting too dark, add 2 tablespoons of water and scrape the brown bits from the bottom of the pan; continue to cook until all the water has evaporated.
• Meanwhile, stir together the mayonnaise, whole-grain mustard and Dijon in a small bowl. Spread the remaining 2 tablespoons butter on the inside of each bun. Shape the ground beef into four 6-ounce patties, each about 1/2 inch thick. Use your thumb to make a deep depression in the center of each patty. Season both sides generously with salt and pepper.
• Heat a griddle (preferably cast-iron) over medium-high heat and grease with some butter. Place the buttered buns on the griddle and cook until lightly toasted, about 1 minute. Move to a cutting board. Place the burgers on the griddle and cook, undisturbed, until the bottoms are well browned, 3 to 4 minutes. Flip the burgers and top with 1/2 cup of cheese each. It is ok if it spills over -- it will get crispy that way. Cover with a large heat-proof bowl and continue to cook until the cheese is completely melted and starting to crisp on the griddle, about 2 minutes. Uncover and continue to cook until the edges of the cheese are crispy, about 2 minutes. (This timing should result in medium-rare to medium burgers.) Transfer to the bottom buns.
• Top the burgers with the caramelized onions and bacon. Spread the Dijonnaise on each top bun, then sandwich together and serve.

FRENCH ONION SOUP BURGERS

Steps:

• 1. Heat olive oil over medium heat in large cast iron skillet. Add onions, salt and red pepper flakes and cook, stirring every 5 minutes or so, for about 15 minutes, until they begin to color.
• 2. Add the butter and continue to cook, stiriring occasionally, for another 15 minutes until onions are caramelized and sweet. Remove to a plate.
• 3. Mix together the seasoning ingredients, (salt, pepper, onion powder, garlic powder and sugar.)
• 4. Shape burger into 4 patties and season with seasoning mixture. Wipe out skillet, grease, and heat over medium heat. Place burgers in skillet and cook for a few minutes until half-way cooked, turn over and cook to your desired doneness.
• 5. When burgers are done, remove the pan from the heat, dash each burger with worcestershire, place a slice of fontina on top of each, and cover the skillet with a lid.
• 6. Meanwhile, turn oven broiler on high. On a baking sheet place buns cut side up and place a slice of gruyere on each piece. Place under broiler until cheese bubbles up and browns.
• 7. Remove from boiler, add the burgers and caramelized onions and serve.