Shoyu (soy Sauce) Garlic Chicken Rice in the Rice Cooker

Ingredients

2 cups rice + water recommended by your rice cooker minus 1/4 cup

3/4 1b chicken

1/4 cup shoyu (soy sauce)

3 tbsp mirin

4-5 garlic cloves

1 ½ tsp onion powder

1/2 onion