French Onion Soup Burgers 🍔🧅🧀

Juicy beef patties topped with caramelized onions, melted cheese, and rich French onion flavor.

Ingredients

For the Burger Patties

• 1 lb ground beef (preferably 80/20 for juiciness)
• Salt and pepper, to taste
• 1 tbsp olive oil (for cooking the onions)

For the Onions & Toppings

• 2 large onions, thinly sliced
• 2 tbsp butter
• 1 tsp fresh thyme leaves (or ½ tsp dried thyme)
• ½ cup beef broth
• 4 slices Gruyere or Swiss cheese
• 4 burger buns, toasted

Instructions

1. Caramelize Onions: Heat olive oil and butter in a skillet over medium heat. Add sliced onions and cook slowly for 20–25 minutes until golden and caramelized. Stir in thyme and beef broth, simmer until reduced.
2. Prepare Patties: Season ground beef with salt and pepper. Form into 4 patties.
3. Cook Patties: Grill or pan-sear patties over medium-high heat for 4–5 minutes per side, until desired doneness.
4. Add Cheese: Place a slice of Gruyere or Swiss cheese on each patty. Cover skillet or grill briefly until cheese melts.
5. Assemble Burgers: Place patties on toasted buns. Top generously with caramelized onion mixture.
6. Serve: Enjoy hot with fries or a side salad.

Details

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: ~45 minutes
• Servings: 4 burgers

Tip: For extra flavor, spread a thin layer of garlic aioli on the buns before serving.