French Onion Soup Burgers

INGREDIENTS:

1 lb ground beef

2 large onions, thinly sliced

2 tablespoons butter

1 teaspoon sugar

1/2 cup beef broth

2 tablespoons Worcestershire sauce

1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme)

Salt and pepper to taste

4 slices of Gruyère or Swiss cheese

4 hamburger buns

1 clove garlic, minced (optional for garlic butter buns)

Additional butter for buns

 

DIRECTIONS:

Caramelize the Onions:

In a large skillet over medium heat, melt the butter.

Add the sliced onions and sugar.

Cook, stirring occasionally, until the onions are deeply caramelized and sweet, about 20-25 minutes.

Add a splash of beef broth if the onions start to stick, to deglaze the pan.

Prepare the Burger Patties:

Season the ground beef with salt, pepper, and Worcestershire sauce.

Form into 4 equal-sized patties.

In a separate skillet or on a grill, cook the burger patties to your desired level of doneness.

Assemble the Burgers:

If desired, prepare garlic butter buns by spreading buns with a mixture of butter and minced garlic, then toasting until golden.

On each bun bottom, place a cooked burger patty.

Top each patty with a generous helping of caramelized onions and a slice of cheese.

Broil the assembled burgers for a few minutes until the cheese is melted and bubbly.

Sprinkle fresh thyme over the cheese, cover with bun tops, and serve immediately.

Prep Time: 15 minutes | Cooking Time: 30 minutes | Total Time: 45 minutes

Calories: 650 kcal per burger | Servings: 4 servings

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