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This double-patty, cheese-loaded, bun-less burger is stacked with caramelized onions for a juicy, keto-friendly flavor bomb in just 20 minutes.
1 lb ground beef (80/20 for juiciness)
1 tsp salt
1 tsp black pepper
4 slices American or Swiss cheese
1 large onion, sliced into thick rings
1 tbsp butter
1 tbsp oil
Optional: burger sauce, pickles, mustard
Prep the onions:
Heat butter and oil in a skillet over medium heat. Add onion rings in a single layer and cook 5–7 minutes per side until deeply caramelized. Remove and set aside.
Shape the patties:
Divide the beef into 4 equal balls. Flatten gently into thin patties and season both sides with salt and pepper.
Cook the patties:
In the same skillet, sear patties for 2–3 minutes per side until browned. Place cheese slices on each patty and let melt.
Stack it:
Assemble each burger by stacking:
Patty + cheese → another patty + cheese → top with a swirl of caramelized onions.
Serve hot:
Enjoy as is, or pair with burger sauce, pickles, or mustard on the side.
Use 80/20 ground beef for ideal fat content and juiciness.
Caramelizing onions low and slow gives the best flavor — don’t rush it!
This burger is naturally low-carb and keto-friendly.
Want extra flavor? Add a dab of Dijon or spicy mayo between patties.
For a grilled version, cook patties on a flat-top or cast iron over direct heat.
Find it online: https://elladishes.com/flying-dutchman-burger-recipe/