Prepare the ingredients: Thinly slice the pork belly into bite-sized pieces. Core and chop the cabbage into 1cm squares. Thinly slice the onion. Slice the scallion into small rounds for garnish.
2
Prepare the sauce: In a small bowl, combine koikuchi soy sauce, mirin, sake, tonkatsu sauce, and Worcestershire sauce. Mix well.
3
Heat a large teppanyaki griddle or heavy-bottomed frying pan over medium-high heat. Add vegetable oil.