Step 1

Thinly slice the onion and cut the Tonkatsu into 1.5 cm (0.6inch) wide slices.

Step 2

Lightly beat the eggs in a bowl and set aside.

Step 3

Pour Dashi stock in a shallow frying pan and bring it to boil over medium heat.

Step 4

Add sliced onion and cook till the onion softens.

Step 5

Add Mirin, Sugar and Soy sauce and cook it for a few minutes.

Step 6

Place the sliced Tonkatsu in the saucepan and pour the eggs over the Tonaktsu.

Step 7

Cook for a further couple of minutes until the eggs are half cooked and slightly runny.

Step 8

Serve rice in a large rice bowl.

Step 9

Slide the Tonkatsu and egg and sauce over the rice.

Step 10

Topp with chopped green shallots(scallions) or Mitsuba.