French Onion Soup Burgers

French Onion Soup is a timeless classic known for its rich, savory flavors and comforting warmth. Combining these flavors with a juicy burger creates a culinary masterpiece that is sure to impress. These French Onion Soup Burgers bring the delicious essence of the beloved soup into a burger, offering a unique and mouthwatering experience. Imagine tender, juicy beef patties topped with caramelized onions and melted Swiss or Gruyère cheese, all nestled between toasted buns. It’s a perfect blend of hearty and gourmet, making it a standout dish for any occasion.

I first discovered the magic of combining French Onion Soup with burgers during a trip to a quaint bistro. The flavors were so captivating that I knew I had to recreate them at home. After some experimentation, I found the perfect balance, and now these burgers are a family favorite. They’re ideal for a cozy family dinner, a weekend barbecue, or even a special gathering with friends.

INGREDIENTS:

1 lb ground beef

4 slices of Swiss or Gruyère cheese

2 large yellow onions, thinly sliced

2 tablespoons unsalted butter

1 tablespoon olive oil

1 teaspoon sugar

1 teaspoon balsamic vinegar

4 hamburger buns, toasted

1 teaspoon fresh thyme leaves

Salt and pepper to taste

1 clove garlic, minced

Optional: 1/4 cup beef broth

DIRECTIONS:

Step 1: Caramelize the Onions

Heat the Skillet: Begin by heating a large skillet over medium heat. Add 2 tablespoons of unsalted butter and 1 tablespoon of olive oil.

Add Onions and Seasonings: Once the butter has melted, stir in the thinly sliced onions, 1 teaspoon of sugar, and 1 teaspoon of balsamic vinegar. The sugar and vinegar help the onions attain a beautiful deep caramelization.

Cook the Onions: Cook the onions for about 20 minutes, stirring occasionally. You want them to become super soft and a rich, golden brown color. Patience here is key – don’t rush these beauties.

Add Garlic and Thyme: Next, sprinkle the onions with the minced garlic and 1 teaspoon of fresh thyme leaves, cooking for an additional minute or two until the garlic is fragrant. Remove from heat and set aside. If the mixture is very dry, you can add a splash of beef broth to deglaze the pan and add more flavor!

Step 2: Prepare the Patties

Form the Patties: While the onions are cooking, form the ground beef into 4 patties. Season each with a pinch of salt and pepper.

Heat the Grill Pan: Heat a grill pan or skillet over medium-high heat.

Cook the Patties: Cook the patties to your preferred doneness – about 4 minutes per side for medium-rare.

Add Cheese: In the final minute of cooking, place a slice of cheese on each patty and cover to melt the cheese. If cooking inside, you can also pop the skillet under a broiler for a quick melt …