Step 1

Gather all the ingredients. See Notes for half portion ingredients or substitute info on sake and mirin.

Step 2

In a saucepan, combine all the ingredients. Add sake and mirin.

Step 3

Add soy sauce and sugar.

Step 4

Bring the mixture to a boil and continuously stir the sauce until sugar is dissolved. Once boiling, lower the heat to medium low. Cook on simmer for 10-15 minutes or until the sauce is thicken.

Step 5

When you mix the sauce or tilt the saucepan, small bubbles start to rise/appear.  When this happens, the sauce is ready to use. Pour the sauce to a sterilized jar and keep the jar open until cool. The sauce will thicken as it cools. Store in the refrigerator for up to 2-3 weeks.