French Onion Burgers

Elevate your burger game with these indulgent French Onion Burgers—a gourmet twist on a classic favorite! Juicy, perfectly seasoned beef patties are topped with rich, melty Gruyère cheese and a luscious layer of sweet, caramelized onions cooked to golden perfection. A zesty homemade aioli, infused with Dijon mustard, fresh thyme, and Worcestershire sauce, adds a tangy kick to every bite. Sandwiched between lightly toasted buns, these burgers deliver a symphony of savory, umami flavors reminiscent of the iconic French onion soup. Perfect for a comforting weeknight meal or an impressive weekend cookout, this recipe is both easy to prepare and utterly irresistible. Pair with crispy fries or a fresh salad to complete the ultimate burger experience!

Nutriscore Rating: 64/100

Prep Time:10 mins

Cook Time:35 mins

Total Time:45 mins

Servings: 4

Ingredients

• 1 pound ground beef
• 2 large yellow onions
• 3 tablespoons butter
• 1 tablespoon olive oil
• 1.5 teaspoons salt
• 0.5 teaspoon black pepper
• 4 slices gruyère cheese
• 4 hamburger buns
• 0.25 cup mayonnaise
• 2 teaspoons Dijon mustard
• 1 teaspoon Worcestershire sauce
• 0.5 teaspoon fresh thyme leaves
• 0.25 cup beef broth
• 1 teaspoon sugar

Directions

Step 1

Peel and thinly slice the onions.

Step 2

In a large skillet, melt the butter with olive oil over medium heat. Add the onions, salt, and sugar. Stir well to coat the onions.

Step 3

Cook the onions over medium-low heat, stirring occasionally, until they are golden brown and caramelized, about 25 minutes. If the skillet becomes too dry, add a splash of beef broth to deglaze and prevent burning.

Step 4

While the onions cook, prepare the burger patties. In a mixing bowl, combine the ground beef, 1 teaspoon salt, and 1/2 teaspoon black pepper. Form the mixture into four even patties.

Step 5

In a small bowl, mix together the mayonnaise, Dijon mustard, Worcestershire sauce, and thyme to create the aioli. Set aside.

Step 6

Heat a skillet or grill pan over medium-high heat. Cook the burger patties for 3–4 minutes on each side, or until they reach your desired doneness.

Step 7

During the last minute of cooking, place a slice of Gruyère cheese on each patty and cover the skillet with a lid to melt the cheese.

Step 8

Toast the hamburger buns lightly in a toaster or on a dry skillet.

Step 9

Spread the aioli evenly on the bottom halves of the buns. Place the burger patties on top, followed by a generous portion of caramelized onions. Top with the other half of the bun.

Step 10

Serve the French Onion Burgers immediately, paired with your favorite sides like crispy French fries or a fresh salad.

Nutrition Facts

Serving size	1286.3 grams (1286.3g)

Amount per serving	% Daily Value*
Calories	2815

Total Fat 222.70g	286%
Saturated Fat 84.50g	422%
Polyunsaturated Fat 4.10g
Cholesterol 589mg	196%
Sodium 6167mg	268%
Total Carbohydrate 102.50g	37%
Dietary Fiber 61.50g	220%
Total Sugars 18.20g
Protein 166.50g	333%

Vitamin D 31IU	154%
Calcium 1217mg	94%
Iron 14mg	77%
Potassium 1704mg	36%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 65.1%

Protein: 21.6%

Carbs: 13.3%