Savor the delicious twist on a classic burger with this Caramelized Onion Swiss Burger recipe. Juicy beef patties are topped with sweet, caramelized onions and rich Swiss cheese, creating a flavor explosion that will impress your family and friends. Learn the art of caramelization, how to form the perfect patty, and explore customization options for a personalized touch. Enjoy this elevated comfort food experience at home, and let your culinary creativity shine!
1 lb ground beef (80/20)
4 slices Swiss cheese
2 large onions, thinly sliced
1 tablespoon olive oil
1 tablespoon unsalted butter
1 teaspoon sugar
Salt and pepper, to taste
4 hamburger buns
1 tablespoon Dijon mustard (optional)
Fresh arugula or spinach (for topping)