• In a large pan or skillet, heat the olive oil an a medium heat. Cook the onion for 5-8 minutes until soft.
• Add the garlic and cook for a further minute.
• Add the spices, red pepper, walnuts, tamari sauce and black soybeans to the pan. Stir for 1-2 minutes.
• Place the ingredients into a food processor and gently pulse until the mixture has combined. You can make it chunky or smooth.
• In a large mixing bowl, add the mixture from the food processor and add the ground flaxseed to bind. Stir through and add any additional ground flaxseed or low carb flour until you have a mixture you can form into patties.
• With damp hands, form the mixture into patties and place on a plate.
• Chill the patties in the fridge for 30 minutes to firm.

Fry the Burgers

• Heat a tablespoon of oil in a large frying pan or skillet and cook for 3-5 minutes each side until slightly crispy.

Air Fry the Burgers

• Place a piece of parchment paper into the air fryer basket (to prevent the burgers sticking) and cook at 200C/400F degrees for 5-7 minutes, turning over half way through cooking.