Step 1
Thinly slice the onion and cut the chicken into bite-sized pieces.
Step 2
Put [A] into a saucepan and bring to a boil. Simmer over medium heat for 2–3 minutes, then add the onion, chicken, and [B]. Reduce to low heat and continue simmering.
Step 3
Once the chicken is cooked through, pour in the beaten eggs, cover with a lid, and cook until softly set. Remove from heat.
Step 4
Serve the rice in bowls, top it with torn nori, then add the chicken-and-egg mixture. Garnish with mitsuba (Japanese parsley) if desired.