French Onion Soup Burger

Imagine the intoxicating aroma of caramelized onions mingling with the rich, savory scent of beef, all tucked inside a warm, toasted bun.

This French Onion Soup Burger isn’t only a breeze to make but also a cozy, indulgent treat for any occasion.

Watch as the ingredients transform into a symphony of flavors, each element enhancing the next.

Let’s bring this mouthwatering masterpiece to life and savor every bite.

Kitchen Tools Required

  • 1 Large skillet
  • 1 Medium saucepan
  • 1 Mixing bowl
  • 1 Tongs
  • 1 Spatula
  • 1 Knife
  • 1 Cutting board

Ingredients

  • 2 tablespoons butter
  • 2 large onions, thinly sliced
  • 1 teaspoon sugar
  • 1/4 cup beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 pound ground beef
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 4 slices Swiss cheese
  • 4 hamburger buns
  • 1/4 cup mayonnaise
  • 1 teaspoon Dijon mustard
  • 1/4 cup fresh parsley, chopped

Cook & Prep Time

To efficiently manage your time while preparing and cooking the French Onion Soup Burger, you can follow this timeline:

  1. Reading and Preparation (5 minutes)
    • Read through the entire recipe to understand the steps and gather all necessary equipment and ingredients.
  2. Prep Work (10 minutes)
    • Thinly slice 2 large onions.
    • Chop 1/4 cup fresh parsley.
    • Mix 1/4 cup mayonnaise and 1 teaspoon Dijon mustard in a small bowl.
  3. Caramelizing Onions (20 minutes)
    • Melt 2 tablespoons of butter in a large skillet over medium heat.
    • Add the sliced onions and sprinkle with 1 teaspoon of sugar.
    • Cook the onions, stirring occasionally, for about 15 minutes until caramelized.
    • Pour in 1/4 cup beef broth and 1 tablespoon Worcestershire sauce and cook for an additional 5 minutes.
  4. Preparing Burger Patties (5 minutes)
    • In a mixing bowl, combine 1 pound ground beef with 1 teaspoon salt and 1/2 teaspoon black pepper.
    • Shape the beef mixture into four equal patties.
  5. Cooking Burger Patties (10 minutes)
    • Heat a medium saucepan over medium-high heat.
    • Cook the patties for 4-5 minutes on each side.
    • Top each patty with a slice of Swiss cheese during the last minute of cooking.
  6. Toasting Buns (5 minutes)
    • Toast the hamburger buns in a separate skillet or toaster.
  7. Assembling Burgers (5 minutes)
    • Spread the mayonnaise and Dijon mustard mixture on each half of the toasted buns.
    • Place a beef patty on the bottom half of each bun.
    • Top each patty with a generous portion of caramelized onions and chopped parsley.
    • Cover with the top half of the bun.
  8. Resting and Serving (5 minutes)
    • Allow the burgers to rest for a few minutes before serving.

Recipe Instructions

Melt the butter in a large skillet over medium heat.

Add the sliced onions to the skillet and sprinkle with sugar.

Cook the onions, stirring occasionally, until they’re caramelized, about 15 minutes.

Pour in the beef broth and Worcestershire sauce and cook for an additional 5 minutes.

In a mixing bowl, combine the ground beef, salt, and black pepper.

Shape the beef mixture into four equal patties.

Heat a medium saucepan over medium-high heat and cook the patties for 4-5 minutes on each side.

Top each patty with a slice of Swiss cheese during the last minute of cooking.

Toast the hamburger buns in a separate skillet or toaster.

Mix the mayonnaise and Dijon mustard in a small bowl.

Spread the mayonnaise mixture on each half of the toasted buns.

Place a beef patty on the bottom half of each bun.

Top each patty with a generous portion of caramelized onions and chopped parsley.

Cover with the top half of the bun and serve immediately.

Serving Tips

  • Crispy French Fries: A classic side that complements the juicy burger and can be dipped in any leftover caramelized onions.
  • Mixed Green Salad: Offers a revitalizing contrast to the rich flavors of the burger, providing a light and healthy balance.
  • Sweet Potato Wedges: Adds a touch of sweetness and a different texture, perfect for those who love a little variety.
  • Onion Rings: Enhances the onion theme and provides a crunchy side that pairs well with the burger.
  • Garlic Mashed Potatoes: A comforting and hearty side that complements the savory flavors of the French Onion Soup Burger.

Storage

Store leftover French Onion Soup Burgers in an airtight container in the refrigerator for up to 3 days.

Reheat thoroughly before serving to maintain flavor and texture.

Freezing

To freeze French Onion Soup Burgers, individually wrap cooked patties in foil.

Place them in airtight containers.

Store caramelized onions separately.

Thaw overnight in the fridge before reheating.

Reheating

For reheating French Onion Soup Burgers, warm the burger patties gently in an oven to preserve juiciness.

Microwave or sauté the caramelized onions to maintain their rich flavor.

Final Thoughts

The French Onion Soup Burger is a delightful fusion of flavors that brings the classic taste of French onion soup to a hearty burger.

With its caramelized onions, melted Swiss cheese, and savory beef patties, this dish is sure to impress.

Preparing the burger requires a bit of patience, especially when caramelizing the onions, but the result is well worth the effort.

Feel free to experiment with additional toppings or seasonings to make it your own.

Enjoy this unique and flavorful burger with family and friends, and savor the comforting, rich taste reminiscent of a beloved soup.

Frequently Asked Questions

Can I Substitute Ground Turkey for Ground Beef in This Recipe?

You can substitute ground turkey for ground beef. Maintain the 1-pound measurement. Adjust cooking time to guarantee the turkey reaches 165°F internally. Use the same seasoning. Turkey’s leaner, so monitor closely to avoid drying out.

What Type of Beef Broth Works Best for This Dish?

You’ll want to use a rich, low-sodium beef broth for ideal flavor without overpowering the dish. It enhances the caramelized onions and beef patties. Opt for homemade or high-quality store-bought broth for best results.

Is There a Vegetarian Version of This Burger?

To create a vegetarian version, substitute 1 pound of ground beef with plant-based patties. Use vegetable broth instead of beef broth. Make certain the cheese is vegetarian-friendly. Follow the same steps for caramelizing onions and assembling.

How Can I Make the Burger Spicier?

To spice up the burger, add 1/2 teaspoon cayenne pepper to the ground beef mix. Incorporate 1 tablespoon of hot sauce into the mayonnaise, and toss chopped jalapeños with the caramelized onions for an extra kick.

What Side Dishes Pair Well With This Burger?

You can pair this burger with crispy oven-baked potato wedges, seasoned with paprika and garlic powder. Try a fresh arugula salad with lemon vinaigrette for a light contrast. Don’t forget a side of tangy coleslaw.

savory onion soup burger

French Onion Soup Burger

Prep Time 15 minutes
Cook Time 30 minutes
Resting Time 5 minutes
Total Time 50 minutes
Course Main
Cuisine American
Servings 4 servings

Equipment

  • 1 large skillet
  • 1 Medium saucepan
  • 1 Mixing bowl
  • 1 Tongs
  • 1 Spatula
  • 1 Knife
  • 1 Cutting board

Ingredients
  

  • 2 tablespoon butter
  • 2 large onions thinly sliced
  • 1 teaspoon sugar
  • 1/4 cup beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 pound ground beef
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 4 slices Swiss cheese
  • 4 hamburger buns
  • 1/4 cup mayonnaise
  • 1 teaspoon Dijon mustard
  • 1/4 cup fresh parsley chopped

Instructions
 

  • Melt the butter in a large skillet over medium heat.
  • Add the sliced onions to the skillet and sprinkle with sugar.
  • Cook the onions, stirring occasionally, until they are caramelized, about 15 minutes.
  • Pour in the beef broth and Worcestershire sauce and cook for an additional 5 minutes.
  • In a mixing bowl, combine the ground beef, salt, and black pepper.
  • Shape the beef mixture into four equal patties.
  • Heat a medium saucepan over medium-high heat and cook the patties for 4-5 minutes on each side.
  • Top each patty with a slice of Swiss cheese during the last minute of cooking.
  • Toast the hamburger buns in a separate skillet or toaster.
  • Mix the mayonnaise and Dijon mustard in a small bowl.
  • Spread the mayonnaise mixture on each half of the toasted buns.
  • Place a beef patty on the bottom half of each bun.
  • Top each patty with a generous portion of caramelized onions and chopped parsley.
  • Cover with the top half of the bun and serve immediately.

Notes

When preparing the caramelized onions, be patient and allow them to cook slowly for maximum sweetness and flavor. You can prepare the onions in advance and reheat them when assembling the burgers. For an added layer of flavor, consider adding a splash of white wine to the onions as they caramelize.
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