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French Onion Soup Burgers

French Onion Soup Burgers
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French Onion Soup Burgers combine the rich, caramelized sweetness of slow-cooked onions with juicy beef patties and melted Swiss cheese, inspired by the classic French onion soup. This comforting and gourmet twist on a burger offers perfectly balanced savory and sweet flavors, easy preparation, and versatile options suitable for any occasion.

Ingredients

Scale

Main Ingredients

  • 1 lb high-quality 80/20 ground beef
  • 3 large yellow onions, thinly sliced
  • 4 slices Swiss cheese
  • 1/4 cup beef broth
  • 2 tbsp butter
  • 1 tbsp olive oil
  • 1 tsp fresh thyme leaves, plus extra sprigs for garnish
  • 4 burger buns, soft yet sturdy
  • Salt and pepper, to taste

Instructions

  1. Caramelize the onions: Thinly slice yellow onions. Heat butter and olive oil over medium-low heat in a large skillet, add onions, and cook slowly for 30-40 minutes, stirring often until deeply browned and sticky. Near the end, deglaze the pan with beef broth and sprinkle fresh thyme to infuse flavor.
  2. Prepare the beef patties: Season ground beef with salt and pepper. Form into 4 evenly sized patties (4-6 ounces each), being careful not to overhandle to keep them tender.
  3. Cook the patties: Preheat a grill or cast-iron skillet to medium-high heat. Cook patties until browned on one side, then flip. Just before finishing, place a slice of Swiss cheese on each patty to melt slightly.
  4. Toast the buns: Slice burger buns and toast them lightly on the grill or in a pan with some butter until golden brown to add crispness and enhance flavor.
  5. Assemble the burgers: Spread a generous layer of caramelized onions over the melted cheese on the patties. Place patties on toasted buns and add any additional desired garnishes before serving.

Notes

  • Low and slow onions: Don’t rush caramelizing onions; patience brings out their sweetest flavor.
  • Rest the patties: Let cooked burgers rest a few minutes to retain juiciness.
  • Use a cast iron skillet: It helps achieve a better sear and even cooking for the patties.
  • Fresh thyme is key: Adds authentic herbal notes that elevate the dish.
  • Don’t overload the bun: Keep toppings balanced to avoid sogginess.

Nutrition

Keywords: French onion soup burger, caramelized onion burger, gourmet burger recipe, beef burger with Swiss cheese, comfort food burger

Find it online: https://mealsbymary.com/french-onion-soup-burgers/