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 … Read more