Wash the rice and add it to the rice cooker pot.
Add sake, mirin soy sauce, and chicken bouillon directly to the pot.
Pour in water (adjust to the rice cooker’s fill line for your rice quantity).
Add grated garlic and stir gently to mix the sauce with the rice.
Add chopped onion, carrots, and diced chicken on top. Don’t stir after this.
Close the lid and start the rice cooker on the white rice or regular cook setting. My rice cooker goes for 55 minutes.
Let it finish the cycle. Once done, add eggs and close the lid immediately. The heat will cook the eggs in about 10 minutes (steam for less time if you want soft runny eggs).
Add butter, ketchup, salt and pepper. Fluff the rice gently to mix everything evenly.