Step 1

Add the beef mince into a large mixing bowl along with the leek, breadcrumbs, sake, soy sauce, red miso paste and egg. Mix everything together with your hands until well combined.

Step 2

Form mixture into 6 equal size patties about 2 cm / 1 inch thick.

Step 3

Heat the vegetable oil and sesame oil in a large frying pan over medium-high heat. Pop in your beef patties and cook for 4 – 5 minutes per side until cooked through.

Step 4

Optional step - lightly toast your burger buns in a toaster OR butter them and place butter side down in a large frying pan until lightly toasted. Transfer to serving plates ready to assemble.

Step 5

Stack a beef patty onto the base of a burger bun and slather (or artfully decorate) with your favourite ratios of Kewpie mayonnaise and Japanese BBQ sauce.

Step 6

Top with cabbage slices and the lid of your burger bun.

Step 7

Serve immediately.