Combine the sake to the soy sauce. Add the wasabi and mix well.
Add the wasabi soy sauce to the beaten egg.
Cut the fish into small cubes and put in the egg and seasoning mixture. Leave in the fridge for a while.
Add a lot of chopped scallions and sesame seeds just before eating. Add some shiso leaves if you like.
Transfer onto the hot rice and serve. You could also serve with a dollop of grated yamaimo yam.
Story Behind this Recipe
This is my home town Oita's local speciality dish that I grew up on. It's best served with a lot of broth.
To avoid losing the flavor of the scallions and sesame seeds, top just before serving. When you mix the wasabi with beaten egg, it won't taste sharp or spicy. If you prefer a stronger wasabi flavor, add more!