french onion soup hamburger recipe

Written BySheba G Updated On
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The Best french onion soup hamburger recipe

French onion soup and a hamburger are two things I order without thinking twice, so putting them together at home was an easy decision. The onions cook down low and slow until they turn soft and sweet, then they go right into the patties with a little of the broth that makes the soup so good. What you get is a burger that tastes like a bowl of French onion soup with a bun around it. Gruyere melts over the top, the toasted bun soaks up what drips down, and every bite has that deep onion flavor I look for.

My kids ask for these on Friday nights now, and my husband has stopped asking what is for dinner on the days I bring the onions home. I make the patties smaller for the little ones and skip the cheese pull drama by slicing theirs in half. The caramelizing takes about 40 minutes and I do it while I am cleaning up the kitchen or helping with homework, so it never feels like a big production. It works for a weekend dinner with friends just as well as a Tuesday when nobody has the energy to plan anything.

Onions bring flavor and texture for very little, and homemade broth does a lot of the heavy lifting in the onion mixture. I use lean ground beef and a modest amount of cheese so the burger stays balanced, and I pile on extra onions because they are the whole point. This is the recipe I hand to anyone who says they are tired of the same burgers every week. It takes a little patience at the stove, but the rest comes together fast.

French Onion Soup Burger

4.8 from 1026 votes

A juicy beef patty piled high with slow-caramelized onions and melted Gruyère, served on a toasted bun with a side of warm beef broth for dipping. It takes everything you love about a bowl of French onion soup and stacks it between two halves of bread.

Prep Time15 mins
Cook Time50 mins
Resting Time0 mins
Total Time65 mins
Servings: 4Cuisine: InternationalCalories: 820 kcal

🥘Ingredients

For the Caramelized Onions

3 tbsp unsalted butter
2 large yellow onions, thinly sliced
1/2 tsp kosher salt
1/2 tsp granulated sugar
1 tsp fresh thyme leaves
1 tbsp dry sherry or balsamic vinegar

For the Burger Patties

1 1/2 lb ground beef, 80/20 blend
1 tbsp Worcestershire sauce
1 tsp onion powder
1 tsp kosher salt
1/2 tsp black pepper

For Assembly

4 brioche or crusty sandwich rolls, split
2 tbsp unsalted butter, softened
3 tbsp Dijon mustard
6 oz Gruyère cheese, shredded (about 1 1/2 cups)
1 cup beef broth, warmed, for dipping

👨‍🍳Directions

1Melt the butter in a large skillet over medium-low heat. Add the sliced onions, salt, and sugar and toss to coat. Cook, stirring every few minutes, for 35 to 40 minutes, until the onions are soft, collapsed, and a deep mahogany brown.
2Stir the thyme and sherry into the onions and cook for one more minute, scraping up the browned bits from the pan. Scrape the onions into a bowl and set aside. Wipe the skillet clean.
3Combine the ground beef, Worcestershire sauce, onion powder, salt, and pepper in a bowl and mix gently with your hands until just combined. Do not overwork the meat.
4Divide the beef into four equal portions and shape each into a patty about 3/4 inch thick. Press a shallow dimple into the center of each patty with your thumb so they cook flat.
5Heat the cleaned skillet over medium-high heat. Spread the softened butter on the cut sides of the rolls and toast them cut-side down for one to two minutes, until golden. Set the rolls aside.
6Add the patties to the hot skillet and cook without moving them for three to four minutes, until a dark crust forms. Flip and cook another three to four minutes for medium, until an instant-read thermometer registers 135°F to 140°F.
7In the last minute of cooking, divide the shredded Gruyère among the patties and cover the pan with a lid until the cheese melts and drapes over the sides.
8Spread Dijon mustard on the bottom buns, set a cheese-covered patty on each, and pile the caramelized onions on top. Cap with the top buns and serve right away with the warmed beef broth on the side for dipping.

🔧Equipment

Large skillet or cast-iron pan with lid
Wooden spoon
Mixing bowl
Griddle or second skillet
Instant-read thermometer
Cheese grater
Small saucepan

📊Nutrition Facts (per serving)

🔥Calories: 820 kcal🧈Total Fat: 52g💛Saturated Fat: 24g❤️Cholesterol: 160mg🧂Sodium: 910mg🌾Total Carbs: 38g🥦Dietary Fiber: 2g🍬Sugars: 8g🥩Protein: 45g

📝Notes

Tips: Slice the onions uniformly thin so they caramelize at the same rate, and keep the heat at medium-low. If the pan starts to scorch, add a splash of water and scrape it up. Caramelized onions can be made up to three days ahead and rewarmed on the stove. Swap in Swiss or smoked provolone if Gruyère is hard to find, and use a sturdy roll that can hold up to the onions and broth. Nutrition figures vary widely by beef blend, cheese, and roll brand, so calculate them from your own ingredients if you need accurate numbers.

Watch Video Of How French Onion Soup Burger Works

This French onion soup hamburger takes everything you love about the classic soup and puts it on a toasted bun, so you get the caramelized onions, the melted cheese, and the savory beef in every bite. I make it whenever we have people over because it feeds a crowd without keeping me in the kitchen all night, and even the picky eaters in my family ask for seconds. It works just as well for a relaxed weekend dinner as it does for a backyard get together, and honestly, that is why it stays in my regular rotation.

❓ Frequently Asked Questions About French Onion Soup Burger

1. What exactly is a French onion soup burger?

It takes the flavors of classic French onion soup—slowly caramelized onions, thyme, a splash of wine or beef broth, and melted Gruyère—and stacks them on a beef patty instead of serving them in a bowl. The result is a juicy burger with deep, savory-sweet onion flavor and a rich cheese pull. Think of it as the soup reimagined as a sandwich.

2. How long does it actually take to caramelize the onions?

Plan on 40 to 50 minutes over medium-low heat, stirring every few minutes. Rushing them over high heat will brown the outside before the sugars develop, and you will end up with burnt edges instead of jammy sweetness. Add a pinch of salt early to draw out moisture, and deglaze the pan with a splash of broth or dry wine whenever the bottom starts to stick.

3. What is the best cheese to use, and can I swap it?

Gruyère is the traditional choice because it melts smoothly and has a nutty, slightly sweet flavor that matches the onions. Swiss, Emmental, or a smoked provolone all work well if that is what you have on hand. Avoid very hard aged cheeses, which tend to turn oily rather than melt when exposed to direct heat.

4. How do I keep the burger from getting soggy?

Toast the buns cut-side down in a dry pan or under the broiler until the surface is dry and lightly crisp, which creates a barrier against moisture. Let the patties rest for a few minutes before building, and drain the caramelized onions briefly so excess liquid does not soak into the bread. If you are adding a sauce, spread it on the top bun rather than directly against the bottom.

5. Can I make this recipe ahead of time or on a weeknight?

Yes. Caramelize a large batch of onions on the weekend and refrigerate them for up to four days; rewarm them in a skillet with a splash of broth before serving. The patties can also be formed and chilled a few hours ahead, which actually helps them hold together on the grill or in the pan. From there, the burgers come together in about 15 minutes of active cooking.

Hi, I’m Sheba G, the creator behind **Sheba’s Recipe**, where I share my favorite homemade dishes and easy recipes anyone can try. I love experimenting in the kitchen and helping others enjoy simple, flavorful meals with confidence.

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