Oyakodon 親子丼

Gan loves oyakodon and I like cooking it because it's really simple to make! It's my default lazy day dish. Oyakondon is a Japanese donburi dish where chicken, eggs, onions are cooked together and served over rice. Here's the recipe:

Ingredients (serving size 2)
2 cups of water
1-2 eggs (beaten)
1 large onion (sliced thinly)
1 boneless jidori leg (lean boneless chicken thigh, cut into small pieces)
2 tbps mirin
1 tbps Hon Dashi (dry bonito soup stock)
1 tbps soy sauce
2 cups of cooked rice (made by 1 cup of uncooked rice)

Prepation:
1) Bring 2 cups of water to boil in a stock pan. Pour in dashi, soy sauce, mirin and onions.
2) Cook the onions in the pot for a few minutes until softened.
3) Add the sliced jidori and let it simmer slowly until the the stock is reduced and the onions are caramelized.
4) Add additional 1/2 cup of water, 1 tbps of mirin and 1/2 tbps of soy sauce to taste, and bring the stock to boil again. Pour in the eggs and mix it in the pot evenly. As soon as the egg is cook, pour the chicken/egg/onion onto two bowls of rice. Serve while hot.