Description

Elevate your burger game with this French Onion Croissant Burger recipe! Juicy beef patties topped with caramelized onions, melted Gruyère cheese, all sandwiched between buttery croissants. A delicious twist on a classic favorite.

Ingredients

Croissant Burgers:

4 large croissants, sliced in half lengthwise
1 1/2 pounds ground beef (80/20)
1 teaspoon salt
1/2 teaspoon black pepper

Caramelized Onions:

2 tablespoons olive oil
2 large yellow onions, thinly sliced
1 teaspoon sugar
2 cloves garlic, minced
1/2 cup beef broth
1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme)

Additional Toppings:

8 slices Gruyère cheese (or Swiss)
2 tablespoons unsalted butter
Lettuce and tomato slices for serving (optional)

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Instructions

Caramelize Onions: In a skillet over medium heat, warm olive oil. Add onions, sugar, salt, and pepper, and cook for 20–25 minutes until caramelized. Stir in garlic, broth, and thyme, and simmer for 5 minutes.
Cook Patties: Season beef patties with salt and pepper. Cook for 4–5 minutes per side until desired doneness. Top with Gruyère to melt.
Toast Croissants: Lightly toast croissant halves with butter until golden.
Assemble Burgers: Layer lettuce and tomato on croissant bottom, add patty, caramelized onions, and top with the other croissant half.

Notes

For added flavor, spread Dijon mustard or aioli on the croissants.
Handle croissants gently to prevent squishing the burger.