- STEP 1
Put all the ingredients for the homemade tonkatsu sauce in a saucepan and simmer for about 10 minutes until the sauce thickens to the same consistency as tomato ketchup and then set aside to cool.
- STEP 2
Cook the burgers to your liking on a BBQ, frying pan, grill or oven.
- STEP 3
Place the burger on the bun and dress with a little tonkatsu sauce, sliced tomato and salad leave