Savor the amazing flavors of French Onion Burgers, where the classic taste of French onion soup meets the juicy goodness of a gourmet burger. Packed with sweet caramelized onions, melted Swiss cheese, and a perfectly toasted bun, this recipe promises to elevate your grilling game! Perfect for gatherings or cozy nights, these burgers are a must-try. Click through to explore the delicious recipe and impress your friends and family!
1 lb ground beef (80% lean)
1 large onion, thinly sliced
2 tablespoons butter
1 tablespoon olive oil
1 teaspoon sugar
1 teaspoon salt
1/2 teaspoon black pepper
4 slices Swiss cheese
4 hamburger buns
2 tablespoons Worcestershire sauce
Fresh thyme leaves, for garnish (optional)