Description

Savory French Onion Burgers loaded with caramelized onions and melted cheese, bringing the classic flavors of French onion soup into a juicy grilled burger.

Ingredients

Units Scale

1 1/2 lbs ground beef (80/20 blend)
1 tbsp Worcestershire sauce
Salt and pepper to taste
2 tbsp olive oil
2 large yellow onions, thinly sliced
1 tbsp butter
1/2 tsp sugar
4 slices Swiss or Gruyère cheese
4 hamburger buns
Optional: mayonnaise, Dijon mustard, lettuce

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Instructions

In a skillet over medium heat, heat olive oil and butter. Add sliced onions and sugar. Cook slowly, stirring often, until onions are deep golden and caramelized, about 25-30 minutes.
In a bowl, mix ground beef with Worcestershire sauce, salt, and pepper. Form into 4 patties.
Heat a grill or skillet over medium-high heat. Cook patties 4-5 minutes per side or until desired doneness is reached.
Top each burger with a slice of cheese during the last minute of cooking to melt.
Toast buns lightly. Spread mayo or mustard if desired.
Assemble burgers by placing patties on buns and topping with a generous portion of caramelized onions. Add lettuce if desired.

Notes

Use Gruyère for a more authentic French onion flavor.
Caramelized onions can be made ahead and stored in the fridge for up to 5 days.
Try adding a splash of beef broth or wine to the onions for deeper flavor.

Nutrition

Serving Size: 1 burger
Calories: 620
Sugar: 6g
Sodium: 610mg
Fat: 38g
Saturated Fat: 16g
Unsaturated Fat: 20g
Trans Fat: 1g
Carbohydrates: 32g
Fiber: 2g
Protein: 38g
Cholesterol: 115mg