French Onion Soup Burgers Recipe

If you love the rich, savory flavors of French onion soup and the juicy satisfaction of a perfectly cooked burger, you’re in for a treat! These French Onion Soup Burgers combine caramelized onions, melted cheese, and a flavorful beef patty to create the ultimate comfort food. Whether you’re cooking for a family dinner or a weekend barbecue, this recipe will have everyone asking for seconds!

Why You’ll Love These French Onion Soup Burgers

Rich, deep flavors – Caramelized onions give these burgers an irresistible taste.

Juicy and cheesy – Topped with melted Gruyère or Swiss cheese for the ultimate indulgence.

Easy to make – Simple steps, yet the taste is restaurant-quality.

Perfect for any occasion – Whether grilled or pan-seared, they’re always a hit!

Ingredients

For the Caramelized Onions:

• 2 large yellow onions, thinly sliced
• 2 tbsp butter
• 1 tbsp olive oil
• ½ tsp salt
• 1 tsp sugar (optional, for extra sweetness)
• ½ cup beef broth
• 1 tsp Worcestershire sauce

For the Burgers:

• 1 ½ lbs ground beef (80/20 blend for best juiciness)
• 1 tsp salt
• ½ tsp black pepper
• 1 tsp garlic powder
• 1 tbsp Worcestershire sauce

Toppings & Buns:

• 4 slices Gruyère or Swiss cheese
• 4 brioche or sturdy burger buns
• 2 tbsp butter (for toasting the buns)
• ¼ cup mayonnaise (optional, for extra richness)
• Fresh thyme (for garnish, optional)

Instructions For The Best French Onion Soup Burgers

Step 1: Caramelizing the Onions

1. Melt butter and heat olive oil in a large skillet over medium heat.
2. Add the sliced onions and sprinkle with salt. Stir occasionally, letting them soften and release moisture.
3. After about 10 minutes, add sugar (if using) and continue cooking until the onions turn golden brown (about 25-30 minutes).
4. Pour in beef broth and Worcestershire sauce, stirring to deglaze the pan. Let the liquid cook down until the onions are jammy and caramelized.
5. Remove from heat and set aside.

Step 2: Preparing the Burgers

1. In a mixing bowl, combine ground beef, salt, pepper, garlic powder, and Worcestershire sauce. Mix gently but thoroughly.
2. Divide into 4 equal portions and shape into patties slightly larger than the buns (they will shrink when cooked).

Step 3: Cooking the Burgers

For Pan-Seared Burgers:

1. Heat a skillet over medium-high heat and lightly grease it.
2. Place the patties in the pan and cook for 3-4 minutes on one side before flipping.
3. Add a slice of cheese to each burger and cover the pan. Cook for another 3-4 minutes until the cheese is melted and the burgers are cooked to your desired doneness.

For Grilled Burgers:

1. Preheat your grill to medium-high heat.
2. Cook the patties for 4-5 minutes per side, adding cheese during the last minute.

Step 4: Assembling the Burgers

1. Toast the brioche buns in a pan with butter until golden.
2. Spread a layer of mayonnaise on the bottom bun (optional).
3. Place the cooked burger patty with melted cheese on the bun.
4. Top generously with caramelized onions.
5. Garnish with fresh thyme if desired and close the bun.

Serving Suggestions

Pair these French Onion Soup Burgers with crispy fries, a fresh green salad, or even a warm bowl of French onion soup for a true bistro experience!

Tips for the Best French Onion Soup Burgers

Take your time caramelizing the onions – This step is crucial for deep flavor.

Use high-quality cheese – Gruyère melts beautifully, but Swiss or provolone are great alternatives.

Don’t overwork the meat – Handling the beef too much can make the patties tough.

Toast your buns – It adds texture and prevents sogginess.

Let the burgers rest – Resting for 5 minutes after cooking helps retain juiciness.

Frequently Asked Questions About French Onion Soup Burgers

Can I use a different type of meat?

Absolutely! Ground turkey or chicken can work as substitutes, but they may be slightly drier. Consider adding a bit of olive oil or a splash of beef broth to keep them moist.

What if I don’t have Gruyère cheese?

No problem! Swiss, provolone, or even white cheddar are delicious alternatives.

How do I store leftovers?

Store the cooked patties and onions separately in an airtight container in the fridge for up to 3 days. Reheat in a pan over low heat for the best texture.

Can I make these burgers ahead of time?

Yes! Shape the patties and prepare the onions in advance. Store them separately and cook fresh when ready to serve.

Final Thoughts

These French Onion Soup Burgers are a gourmet twist on a classic burger, bringing all the savory, cheesy goodness of French onion soup into every bite. Whether you’re making them for a special occasion or a casual weeknight dinner, they’re sure to impress. Try them today and experience a new level of burger bliss!

Print