Onion Soup Burgers (Print Version)

Ingredients:

01 - 1 lb ground beef.
02 - 2 large onions, thinly sliced.
03 - 2 tablespoons butter.
04 - 1 teaspoon sugar.
05 - 1/2 cup beef broth.
06 - 2 tablespoons Worcestershire sauce.
07 - 1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme).
08 - Salt and pepper to taste.
09 - 4 slices of Gruyère or Swiss cheese.
10 - 4 hamburger buns.
11 - 1 clove garlic, minced (optional for garlic butter buns).
12 - Additional butter for buns.

Instructions:

01 - Heat the butter in a large skillet over medium heat. Add the thinly sliced onions and sprinkle with sugar. Cook the onions, stirring occasionally, until they turn a deep golden brown and become sweetly caramelized, about 20-25 minutes. If the onions start to stick, deglaze the pan with a splash of beef broth.
02 - In a mixing bowl, season the ground beef with salt, pepper, and Worcestershire sauce. Mix well.
03 - Shape the seasoned beef into 4 evenly sized patties. Cook the patties in a skillet or on a grill to your preferred level of doneness.
04 - For garlic butter buns, mix minced garlic with softened butter and spread on the buns. Toast them until golden brown.
05 - Place a cooked beef patty on the bottom half of each bun. Pile on a generous amount of caramelized onions and top with a slice of Gruyère or Swiss cheese.
06 - Broil the assembled burgers briefly until the cheese is melted and bubbly.
07 - Sprinkle fresh thyme over the melted cheese, cover with the top bun, and serve immediately.

Notes:

01 - Enjoy a luxurious twist on the classic burger with these French Onion Soup Burgers. The deep, rich flavors of caramelized onions paired with savory beef patties and melted Gruyère cheese create a mouthwatering experience that's perfect for any meal.