Place all the ingredients except the chicken in a pot. You can use up to 3 portions of the sauce, it is up to you.
When the sauce comes to a boil and have thickened slightly, add the chicken.
Once the chicken is cooked, remove.
Set the chicken aside to rest, while you boil off the sauce to thicken it again.
Slice chicken and drizzle sauce over.
Nice with sushi rice, in rolled sushi, in any Japanese noodle or with a Japanese style salad.