Take a small bowl and add 1 tbsp wasabi paste, 2 tbsp soy sauce, 2 tbsp sake, 2 tbsp mirin, 2 tsp sugar and 1 tsp honey. Mix until well combined and set it by the stove ready for later.
Cut 450 g beef steak into bitesize pieces and place them in a bowl. Sprinkle with 1 pinch salt and pepper and mix until evenly distributed. Start heating a frying pan on high.
Add ½ tbsp potato starch to the beef and mix until lightly coated all over.
Once the pan is hot, add ½ tbsp cooking oil and swirl around before adding the beef and searing on one side.
Once browned underneath, add the sauce and stir-fry everything together until slightly thickened and glossy. As soon as it reaches that point, turn off the heat. (Tip: If you prefer beef well done, seal on the other side before you add the sauce.)
Divide 2 portions cooked Japanese short-grain rice and 50 g shredded cabbage into serving bowls.
Add the beef, including any leftover sauce from the pan. Garnish with finely chopped green onions and sesame seeds. Add more wasabi for a fiery kick if desired.
Enjoy!