Epic French Onion Stuffed Burgers
French Onion Stuffed Burgers turn your basic beef hamburger into something extra special. Inspired by the classic French Onion Soup au Gratin, take the caramelized onions to stuff inside and pile all the gooey cheese on top. Then toss them on the grill for an epic stuffed burger recipe.
Originally published on May 11, 2017
There are so many food holidays out there. Each day has one, if not more ingredients, dishes, or cuisines that are honored and celebrated. Everything from liver and onions to peanut butter gets its day in the spotlight (though let’s be real, I am more likely to join in celebrating the latter).
Personally, I think it’s all a bit too much.
But there is one month I can get behind – Burger Month.
Yes, you guys, perfectly coinciding with the unofficial kickoff to grilling season, May is National Hamburger Month.
Now, where’s the beef?!?!
French Onion Soup au Gratin Stuffed Hamburgers
Burger Month calls for an epic burger, and these French Onion Soup au Gratin Stuffed Burgers fit the bill! When thinking about a knock-your-socks-off burger, I went back to a tried and true comfort food – French Onion Soup.
Soup as we kick off summer? Yes, because when you take the elements of this classic soup – caramelized onions, beefy broth, and melty cheese – and stuff it inside and on top of beef, it’s an absolute winning formula.
How do you make onion stuffed burgers?
- Caramelize onions in a pan, then add some beef broth for that soupy rich flavor.
- Reduce it down to concentrate all of that deliciousness.
- Stuff the caramelized onions inside some basic beef burgers.
- Grill the burgers and finish with adding a few more onions and Gruyere cheese on top.
- Place your burgers on a toasted brioche roll for the touch of toasted bread and melty cheese that defines the classic crock of French onion soup.
- Smear with a simple aioli-type spread made with even more of those caramelized onions mixed in.
If that’s not a burger of insane proportions, I don’t know what is!
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Looking for more burger recipes?
- Meatball Parmesan Burgers (and be sure to check out the recipe for a low carb option on a portabello bun)
- Peruvian Turkey Burgers with Aji Sauce
- Merlot Onion Burgers
- Mexican Black Bean and Quinoa Burgers
- Plus you need to see A Dozen Big Bad Beefy Burgers for tasty takes on the classic beef hamburger.
- But if you prefer turkey, chicken, seafood, or veggie burgers, here are 18 Blow-Your-Mind Burgers that are Anything-But-Beef.
French Onion Soup Stuffed Burger Recipe
Big, juicy beef hamburgers stuffed with caramelized onions and gooey cheese on top are a winning combination. Toss these on the grill for a seriously epic recipe for your summer barbecue.
French Onion Soup au Gratin Stuffed Burgers
For the onions
For the French onion spread
- 1/4 cup mayonnaise
- 1/4 cup plain Greek yogurt
- 2 Tablespoons of the onion mixture
- 1 teaspoon dijon mustard
- 1 teaspoon minced fresh parsley or 1/4 teaspoon dried parsley
- pinch salt and pepper to taste
For the burgers
- 1 1/3 pounds lean ground beef
- 1 Tablespoons minced fresh parsley or 1 teaspoon dried parsley
- 1/2 teaspoon pepper
- 1 teaspoon kosher salt
- 4 oz gruyere cheese shredded, divided
- 4 brioche buns or gluten free buns, if needed, sliced open
- Bibb or butter lettuce
For the onions:
- Heat oil in a skillet over medium, add onions, salt & pepper, cook 15-20 minutes, stirring frequently or until caramelized.
- Add thyme, sauté for minute or two, then add the wine and beef broth.
- Reduce until very little liquid remains.
- Set aside to cool.
For the French onion spread:
- In a small bowl, combine all of the ingredients and stir to combine. Store in the refrigerator until ready to use.
For the burgers:
- In a bowl, combine the beef, parsley, pepper, and salt, and gently combine with your hands.
- Divide the meat mixture into four equal pieces.
- Take one piece of the meat mixture and flatten into a very thin patty. Place about a tablespoon of the onions in the center of the patty and wrap the meat around the onions to form a burger, sealing as best you can. Repeat with the remaining three pieces of meat.
- Preheat your grill to medium-high heat. Grill for 5-6 minutes per side to desired doneness. For the last couple minutes of grilling, divide the remaining onion mixture on top of the burgers and top each with a quarter of the Gruyere cheese.
- Lightly toast the buns on the grill. Place one burger on the bottom half of each bun, top with lettuce and French onion spread.