Onion wrapped Flying Dutchman burger (in-n-out copycat) 

Onion wrapped Flying Dutchman burger
Photos for this recipe are from Erin Hungsberg (IG: erin_hungsberg)

The viral onion wrapped Flying Dutchman burger from in n out is the latest trend to hit social media. This burger features two thin beef patties with American cheese, burger sauce and grilled onions for buns. So good!

Whether you are watching the carbs, love onions, or just want to try something different, this burger is super satisfying and the only way to go! 

Where did the Flying Dutchman burger originate? 

Onion wrapped Flying Dutchman burger

Harry Snyder the founder of in-n-out created the not-so-secret-menu item called the “Flying Dutchman” It comprises of two burger patties and two cheese slices without buns or condiments.

This no buns, no fuss burger was later adapted when people started using caramelized onions for buns. The addition of burger sauce takes this newest craze over the top. 

Ingredients needed for this recipe:

Ingredients for onion wrapped Flying Dutchman burger

For the burgers

  • Ground beef
  • American cheese
  • Yellow onion
  • Salt, pepper, garlic powder and sugar

Burger Sauce

  • Mayonaise
  • Ketchup
  • Yellow mustard
  • Relish
  • Worcestershire sauce
  • White sugar
  • Apple cider vinegar

Caramelizing the onions. 

I like using large yellow onions as they caramelize a little better than white ones, plus I think they taste better.  First peel and slice your onions about a half inch thick. The thick slices are important as they are being used for buns.

Coat the onion slices with olive oil and season with salt, pepper, and a pinch of sugar. In a pan on medium low heat add a tablespoon of olive oil and cook the onions. Be careful not to flip the onions too much as you want them to stay together.

Cooking them on medium low also ensures the onions are cooked through instead of raw in the middle. If your onions aren’t getting soft add a little water to the pan and cover with a lid for a few minutes. The steam will help break them down.  

Caramelized onions

Once the onions are cooked all the way through and have a nice brown caramelized color on the outside, set them aside. This will probably take between 20-30 minutes. 

Making the burger sauce.

Making the sauce couldn’t be any easier. This sauce is very similar to my homemade Big Mac sauce and just as tasty. 

Ingredients for burger sauce

Simply combine mayonnaise, relish, ketchup, yellow mustard, white sugar, apple cider vinegar and Worcestershire sauce. Whisk all of the ingredients together and set aside. This sauce will be used for the burger and can be served on the side for dipping.  

Burger sauce

Cooking the burgers.

Take 80/20 ground beef and roll them into 3 oz balls. Smash them down really flat with a burger smasher and season with salt, pepper and garlic powder.  

Smash burgers

Then cook the burgers in a pan or a griddle over medium high heat to get a nice sear.

The burgers will cook quickly and will be done in just a couple of minutes. Add a slice of cheese or two onto each patty and its time to assemble. 

Making onion wrapped Flying Dutchman burgers. 

To assemble each burger, stack two patties together on top of one yellow onion. Then add a spoonful of burger sauce and top with one more onion slice. This burger can get a little messy so hold on for dear life as you eat it.

You can also wrap the bottom of each assembled burger with a little parchment paper like they do at in-n-out burger to keep things a little cleaner. 

Onion wrapped Flying Dutchman burger


Is this burger keto friendly? 

Yes it is! The onion buns are very low carb and make this burger a great option for those on a keto or low carb diet. 

Can I substitute the American cheese ? 

While in-and-out uses American cheese, you can use cheddar or anything else you typically like on a burger. 

​What’s the best way to eat the Flying Dutchman burger? 

This burger is super delicious, but it can be very messy. I like to wrap each burger  in parchment paper to avoid getting grease everywhere. Plus the paper helps hold everything together. I also like to add the sauce on top of the burger while assembling. I want that sauce in each bite!

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Onion wrapped Flying Dutchman burger (in-n-out copycat) 

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  • Total Time: 30 minutes
  • Yield: 2 1x



For burger 

  • 12 oz 80/20 ground beef 
  • 1 teaspoon salt
  • 1 teaspoon pepper
  • 1 teaspoon garlic powder 
  • 1 teaspoon sugar 
  • 4 slices American cheese 
  • 1 large yellow onion 
  • 2 tablespoons olive oil

Burger Sauce 

  • 1/3 cup mayonnaise 
  • 3 tablespoons ketchup
  • 3 tablespoons relish
  • 1 tablespoon yellow mustard 
  • 1 tablespoon apple cider vinegar 
  • 1 tablespoon Worcestershire 
  • 1 teaspoon white sugar 
  • Salt and pepper to taste 


  1. Peel and cut yellow onion into 4, 1/2 inch slices. 
  2. Drizzle each onion slice with olive oil and season with a pinch of salt, pepper, and sugar. 
  3. In a pan on medium low heat, caramelize onions for about 10 minutes on each side. Onions should have a nice sear on outside and soft through the middle. Set aside for assembly. 
  4. Roll 3 0z balls from ground beef and then smash down into thin patties. Season with salt, pepper, and garlic powder. 
  5. On medium high heat, sear burger patties in a pan or griddle with 1 tablespoon of olive oil for 2 minutes per side or until cooked through.  Add a slice of American cheese to each patty, allow the cheese to melt, and remove from the pan.
  6. Assemble Flying Dutchman burger by stacking two beef patties on top of one slice of cooked onion, add a spoonful of burger sauce and top with one more onion slice. 

Burger sauce: 

  1. Combine all ingredients for burger sauce together in a bowl and whisk together to combine. Spoon sauce on top of the burgers or to the side for dipping. 


  • Author: Jordan Hanger
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes

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  1. My husband made these a few weeks ago and they were amazing. He is on a low carb diet so they were perfect for him. Highly recommend!

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