French Onion Soup Burgers Recipe
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
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