Wash the rice thoroughly and add it to the rice cooker bowl.
Add sauce ingredients: soy sauce, mirin, sake, dashi powder, and sugar
Add water to the 2 mark on the rice cooker or about 1 cup of water. It will be 1:1 ratio of rice to liquids (water + soy sauce + mirin + sake)
Layer the sliced onion and chopped chicken evenly over the rice and sauce mixture
Close the lid and press "Cook" (use the regular white rice setting). Let the rice cooker run its full cycle (usually 30–55 minutes).
Prepare the egg mixture by mixing eggs, dashi powder, mirin, and sugar. Whisk gently and set aside until rice is ready.
Once the cooking cycle is complete, quickly pour the beaten egg mixture over the top.
Close the lid and let the residual heat cook the eggs for 5–8 minutes, until just set but still slightly soft. If it doesn't cook you can press the cook button for additional 5 minutes.
Fluff gently to mix, and garnish with chopped green onion, nori strips, or shichimi togarashi (optiona).
Scoop into bowls and serve as-is. Or make it into onigiri.
To make onigiri, I am using a mold
Add nori strip to onigiri
Take this on-the-go, as a snack, or as a side for lunch, and enjoy!