The French Onion Soup Burger is a gourmet twist on the classic American burger, inspired by the rich, comforting flavors of traditional French onion soup. Loaded with deeply caramelized onions, melted Comté cheese, and a homemade aioli, this French-inspired burger delivers the perfect balance of savory, sweet, and cheesy goodnes, bringing true bistro-style comfort to your table.
If you love French onion soup and a perfectly juicy burger, this French Onion Soup Burger brings the best of both worlds together. This recipe transforms the iconic flavors of the classic French soup - slow-caramelized onions, nutty melted cheese, buttery richness, and a hint of sweetness - into an indulgent, gourmet burger that feels straight out of a French bistro. It’s French-inspired comfort food that elevates the standard homemade burger into something richer, deeper, and irresistibly satisfying.
What makes this gourmet French onion burger special is the use of Roscoff onions PDO, celebrated in France for their natural sweetness and delicate flavor. Slowly cooked in French butter and finished with a touch of sugar, they become silky, golden, and deeply caramelized - just like the topping of a traditional French onion soup. Paired with melty Comté PDO, a nutty Alpine cheese that melts beautifully, the burger takes on an unmistakably authentic French character.
Perfect for weeknight dinners, weekend grilling, or a French-themed gathering, this French Onion Soup Burger is comfort food with a French twist - hearty, gourmet... and impossible to resist!
Preparation time
25 min
Ingredients For
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For the onions
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0.70 oz
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2 teaspoons
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For the burgers
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x 4
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4 ground
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4 handfuls
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0.70 oz
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For the aioli sauce
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x 1
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6.70 oz
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1 clove
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Preparation
1
Peel and chop onions. Melt butter in a frying pan, add onions and sauté for a few minutes. Season with salt and pepper. When they start to turn golden, sprinkle with sugar and continue cooking, stirring regularly. When caramelized, keep warm.
2
Prepare the aioli sauce: place an egg yolk in a bowl and add the mustard. Season with salt and pepper. Whisk briskly, then drizzle in the oil while continuing to whisk the mixture.
3
Peel and mince garlic, add to sauce and mix.
4
Cut buns in half. Set aside.
5
Heat a frying pan with half the butter and cook the meat. Season with salt and pepper.
6
Add cheese to each ground steak and cover with a lid.
7
In another pan, heat remaining butter and lightly brown buns.
8
Spoon a little sauce over each bun base, then place a steak on top. Cover with caramelized onions and add the salad. Place the other half of the bun on top and add a spade. Serve immediately.
