Imagine the rich, savory flavor of a classic French onion soup, with its caramelized onions, beefy broth, and melty cheese, all packed into a juicy burger. These French Onion Soup Burgers bring that delicious experience straight to your plate, making for a perfect comfort meal. Each bite is filled with the savory depth of caramelized onions, tender beef, and gooey cheese, all served on a toasted bun. This recipe is perfect for a cozy dinner, and it’s sure to impress anyone who loves a hearty, flavorful burger.
Ingredients
For the Caramelized Onions:
- 2 large yellow onions, thinly sliced
- 2 tbsp unsalted butter
- 1 tbsp olive oil
- 1/2 tsp salt
- 1/4 tsp sugar
- 1/4 cup beef broth or beef stock
- 1/2 tsp fresh thyme leaves (optional)
- 1 tbsp balsamic vinegar (optional, for a touch of sweetness and depth)
For the Burgers:
- 1 1/2 pounds ground beef (preferably 80/20 for juiciness)
- 1 tsp Worcestershire sauce
- 1/2 tsp garlic powder
- Salt and black pepper, to taste
- 4 slices Gruyère cheese (or Swiss cheese)
- 4 brioche buns or other sturdy burger buns
- 2 tbsp unsalted butter, for toasting the buns
- Dijon mustard (optional, for spreading on the buns)