Flying Dutchman Burger

By: Barbara Updated on Thu, 19 Mar 2026 20:06:26 GMT Hearty Mains
Barbara, recipe developer and home cook at Graceful Flavors
Barbara

Hi, I'm Barbara, the recipe developer and home cook behind Graceful Flavors. I share approachable recipes with clear steps, familiar ingredients, and delicious results for real everyday kitchens.

Updated on Thu, 19 Mar 2026 20:06:26 GMT

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A sandwich with a slice of onion on top. Pin it
A sandwich with a slice of onion on top.

Flying Dutchman Burger gives you all the juicy, cheesy satisfaction of a classic burger without the carbs from a traditional bun. It swaps out bread for toasted cheesy onion slices that hold everything together perfectly. This recipe is ideal when you crave something rich but want to keep things low-carb and packed with bold flavors.

I remember making this for friends who were skeptical about skipping the bun and they ended up loving how flavorful and satisfying it was. It quickly became a go-to when I wanted something hearty that didn’t weigh me down.

Ingredients

  • Ground beef 80/20: the perfect fat ratio for juicy, flavorful patties
  • Large yellow onion: sliced thick; acts as the bun and adds a sweet, caramelized bite
  • American cheese: melts beautifully on the burger to add that classic cheeseburger taste
  • Mozzarella cheese: forms a crispy, cheesy base for the onion bun; look for fresh or low-moisture type if possible
  • Burger seasoning: a blend of spices to boost the beef’s flavor; you can use your favorite brand or make your own
  • Burger sauce: a tangy, creamy mix of mayo, ketchup, mustard, apple cider vinegar, relish, smoked paprika, garlic powder, and black pepper that complements the richness of the meat and cheese

Step-by-Step Instructions

Searing and Seasoning the Onion:
Start by slicing the yellow onion into four large rings, keeping the layers attached. Season both sides with salt and pepper to enhance their natural sweetness.
Cook the onion slices on a hot griddle over medium-high heat for about 4 to 5 minutes per side until they develop a nice char. This caramelization adds depth of flavor. Sprinkle a little water on the griddle, cover, and let the onions steam for 3 to 4 minutes until softened and tender.
Forming and Cooking the Burger Patties:
Divide the ground beef into quarter-pound balls. Using a burger press or a spatula, smash them down into thin patties. The thinness is key for creating crispy edges and quick cooking. Season both sides generously with burger seasoning.
Place the patties on the griddle and cook for 3 to 4 minutes before flipping. On the flip side, immediately add a slice of American cheese. After the second side cooks for about the same time, remove the patties from heat.
Toasting the Mozzarella Onion Bun:
Over medium heat on the griddle, spread out four slices of mozzarella cheese. Let them melt and bubble until golden and crispy, around 2 minutes. Place each softened onion ring on a melt of mozzarella allowing it to adhere and become the bottom and top bun layer.
Assembling the Burger:
Start with a cheesy onion slice as the base. Spread a generous layer of burger sauce over it. Place a cheeseburger patty on the sauce and add more burger sauce on top. Cap the creation with another cheesy onion slice. Serve immediately for best texture and flavor.
A stack of hamburgers with a side of onions and sauce.
A stack of hamburgers with a side of onions and sauce.

Storage Tips

Store leftover patties and onions separately in airtight containers in the fridge for up to three days. Reheat gently in a skillet to maintain the crispiness of the cheese. The burger sauce keeps well refrigerated for about a week, so feel free to make it ahead for convenience.

Ingredient Substitutions

If you don’t have American cheese, a mild cheddar or even a good melting Swiss works fine – just adjust melt times as needed. For mozzarella, low-moisture shredded mozzarella can be pressed into a flat layer on parchment paper and grilled to mimic the slice texture. Try turkey or chicken patties if you want a leaner protein option, but the beef flavor is tough to beat.

Serving Suggestions

Serve these burgers with a crisp green salad or roasted vegetables to keep the meal light but satisfying. Pickles on the side bring a nice tang that cuts through all the richness. For a fun twist, add a fried egg on top or some crispy bacon for extra indulgence.

Cultural Context

The Flying Dutchman Burger is inspired by the original In-N-Out burger version, which traditionally comes without a bun. It’s a great example of how classic fast food can be adapted for low-carb eating while keeping all the comforting flavors intact. This recipe also highlights the art of the smash burger, a technique that maximizes flavor through tough crust formation and cheese layering.

A large burger with cheese and onions.
A large burger with cheese and onions.

Frequently Asked Questions

What type of beef is best for the patties?

Using 80/20 ground beef provides the right balance of meat and fat, ensuring juicy and flavorful patties with a great crust when smashed.

How do you achieve the smoky flavor on the onions?

Cooking the onion slices on a hot griddle until charred, then steaming briefly with a splash of water, gives them tender texture and a smoky, slightly sweet flavor.

Can I use a different cheese than American and mozzarella?

Yes, cheeses like cheddar or provolone can work well, though American and mozzarella melt smoothly and complement the savory patties and onions nicely.

What is the purpose of smashing the burger patties?

Smashing thin burger balls onto a hot surface creates a caramelized crust that locks in flavor and adds a satisfying texture contrast.

How is the burger sauce prepared?

Simply mix mayo, ketchup, mustard, apple cider vinegar, relish, smoked paprika, garlic powder, and black pepper until well combined for a tangy, flavorful sauce.

Is this dish suitable for low-carb diets?

Yes, the absence of a traditional bun and use of cheesy onion slices as the base makes it a great low-carb option packed with protein and flavor.

4.60 from 45 votes

Flying Dutchman Smash Burger

Prep Time:
10 Minutes
Cook Time:
20 Minutes
Total Time:
30 Minutes
Servings:
2
A sandwich with a slice of onion on top.

Low-carb Flying Dutchman burger with smashed patties, melted cheese, charred onions, and tangy sauce in a cheesy onion bun.

Ingredients

  • Beef Patty

  • 1 lb 80/20 ground beef
  • 2 tbsp burger seasoning
  • Cheese

  • 4 slices American cheese
  • 4 slices mozzarella cheese
  • Onion

  • 1 large yellow onion
  • Burger Sauce

  • 1 cup mayonnaise
  • 2 tbsp ketchup
  • 1 tbsp yellow mustard
  • 1 tbsp apple cider vinegar
  • 1 tbsp sweet relish
  • 1 tsp smoked paprika
  • 1 tsp garlic powder
  • 1 tsp black pepper
  • Seasoning

  • Salt, to taste
  • Black pepper, to taste

Instructions

1.

1. Prepare Onion Slices: Slice the yellow onion into 4 large rings, keeping each ring intact. Season both sides with salt and black pepper.

2.

2. Make Burger Sauce: Combine mayonnaise, ketchup, yellow mustard, apple cider vinegar, sweet relish, smoked paprika, garlic powder, and black pepper in a bowl. Mix thoroughly until fully incorporated.

3.

3. Cook Onions: Heat a griddle to medium-high. Place onion slices on the griddle and cook for 4-5 minutes per side until charred. Add a splash of water, cover, and steam for 3-4 minutes until softened.

4.

4. Form and Season Patties: Divide ground beef into 4 portions of ¼ lb each. Smash each into a thin patty using a burger press or spatula. Season both sides with burger seasoning.

5.

5. Cook Patties and Melt American Cheese: Place patties on the hot griddle and cook for 3-4 minutes. Flip, then immediately add one slice of American cheese to each patty to melt.

6.

6. Prepare Mozzarella Cheese and Onion Base: With onions soft, place 4 slices mozzarella cheese directly on the griddle over medium heat. Once cheese starts to melt, put each cooked onion ring on a slice of mozzarella. Cook for 2 minutes until cheese is golden and toasted, then remove.

7.

7. Assemble Burger: Layer the burger starting with the mozzarella onion base, add a generous spread of burger sauce, place burger patties with melted American cheese, add more sauce, and top with another mozzarella onion ring.

Notes

  1. For best texture, ensure patties are thin and handle beef minimally to keep them tender.

Tools You'll Need

  • Griddle or heavy skillet
  • Burger press or spatula
  • Mixing bowl

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy and egg products

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 750
  • Total Fat: 55 g
  • Total Carbohydrate: 10 g
  • Protein: 48 g