French Onion Soup Burgers
These French Onion Soup Burgers bring together juicy beef patties, rich caramelized onions, and melty Swiss or gruyère cheese for a gourmet twist on a classic burger. Perfect for a cozy dinner or weekend cookout.
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Ingredients
- 1 lb ground beef
- 4 slices Swiss or gruyère cheese
- 2 large yellow onions thinly sliced
- 2 tbsp unsalted butter
- 1 tbsp olive oil
- 1 tsp sugar
- 1 tsp balsamic vinegar
- 4 hamburger buns toasted
- 1 tsp fresh thyme leaves
- Salt and pepper to taste
- 1 clove garlic minced
- 1/4 cup beef broth optional
Instructions
- Heat a large skillet over medium heat. Add butter and olive oil. Once melted, stir in sliced onions, sugar, and balsamic vinegar.
- Cook onions for about 20 minutes, stirring occasionally, until soft and golden brown.
- Add minced garlic and thyme, cooking for 1-2 more minutes until fragrant. Remove from heat. If dry, add a splash of beef broth to deglaze.
- Form ground beef into 4 patties. Season each with salt and pepper.
- Heat a grill pan or skillet over medium-high heat. Cook patties about 4 minutes per side for medium-rare, or to desired doneness.
- In the last minute of cooking, top each patty with a slice of cheese and cover to melt.
- Place each patty on a toasted bun, top generously with caramelized onions, then add the top bun.
- Serve immediately while hot.
Notes
For extra indulgence, spread a thin layer of Dijon mustard or garlic aioli on the buns before assembling.
Nutrition
Serving: 1servingCalories: 701kcalCarbohydrates: 48.5gProtein: 33gFat: 44.8gSaturated Fat: 18.5gTrans Fat: 1gCholesterol: 112mgSodium: 468mgFiber: 3gSugar: 9.8g