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Carefully slice the whole onion into thick, sturdy rounds, approximately 1/2 to 3/4 inch thick. You will need 8 slices for the burgers and the remaining for the sauce.

Heat a pan over medium heat and add a generous amount of algae cooking oil (or other cooking oil). Place 8 thick onion slices into the hot pan.

Cook the onion slices until deeply caramelized and tender, flipping once to ensure even browning on both sides. This will take about 8-10 minutes. Remove from pan and set aside, reserving about 1/4 cup of the caramelized onions for the special sauce.

Using the same pan, place two vegan burger patties into the hot oil. If desired, place a piece of parchment paper on top of each patty and use a spatula to smash them flat. Remove the parchment paper.

Squeeze yellow mustard directly onto the cooking patties. Continue cooking until the patties are browned on one side, then flip them. Immediately place one slice of vegan cheese on top of each cooking patty. Cook until the cheese is melted and the patties are cooked through. Remove from pan and set aside. Repeat this process for the remaining 6 patties.

In a small bowl, add 1 cup of vegan mayonnaise. Squeeze in ketchup and yellow mustard as desired (about 1/4 cup each). Add chopped pickles or relish as desired (about 1/4 cup). Add the reserved 1/4 cup of caramelized onions to the bowl.

Whisk all the sauce ingredients together until well combined and smooth.

Lay out a large lettuce leaf (or multiple overlapping leaves) on a clean surface to form the base of the wrap. Place one cooked vegan burger patty with melted cheese on the lettuce.

Top the patty with one caramelized onion slice. Spoon a generous amount of the special sauce over the onion and patty.

Add a second cooked vegan burger patty with melted cheese on top of the sauce. Place another caramelized onion slice on the second patty. Spoon more special sauce on top.

Fold the lettuce leaves around the assembled burger to create a wrap. For easier handling, you can wrap the lettuce-wrapped burger tightly in parchment paper and then cut it in half. Repeat for the remaining 3 servings.

Serve immediately, optionally with a side of fries and extra special sauce for dipping.


Carefully slice the whole onion into thick, sturdy rounds, approximately 1/2 to 3/4 inch thick. You will need 8 slices for the burgers and the remaining for the sauce.

Heat a pan over medium heat and add a generous amount of algae cooking oil (or other cooking oil). Place 8 thick onion slices into the hot pan.

Cook the onion slices until deeply caramelized and tender, flipping once to ensure even browning on both sides. This will take about 8-10 minutes. Remove from pan and set aside, reserving about 1/4 cup of the caramelized onions for the special sauce.

Using the same pan, place two vegan burger patties into the hot oil. If desired, place a piece of parchment paper on top of each patty and use a spatula to smash them flat. Remove the parchment paper.

Squeeze yellow mustard directly onto the cooking patties. Continue cooking until the patties are browned on one side, then flip them. Immediately place one slice of vegan cheese on top of each cooking patty. Cook until the cheese is melted and the patties are cooked through. Remove from pan and set aside. Repeat this process for the remaining 6 patties.

In a small bowl, add 1 cup of vegan mayonnaise. Squeeze in ketchup and yellow mustard as desired (about 1/4 cup each). Add chopped pickles or relish as desired (about 1/4 cup). Add the reserved 1/4 cup of caramelized onions to the bowl.

Whisk all the sauce ingredients together until well combined and smooth.

Lay out a large lettuce leaf (or multiple overlapping leaves) on a clean surface to form the base of the wrap. Place one cooked vegan burger patty with melted cheese on the lettuce.

Top the patty with one caramelized onion slice. Spoon a generous amount of the special sauce over the onion and patty.

Add a second cooked vegan burger patty with melted cheese on top of the sauce. Place another caramelized onion slice on the second patty. Spoon more special sauce on top.

Fold the lettuce leaves around the assembled burger to create a wrap. For easier handling, you can wrap the lettuce-wrapped burger tightly in parchment paper and then cut it in half. Repeat for the remaining 3 servings.

Serve immediately, optionally with a side of fries and extra special sauce for dipping.
