1/2 cup soy sauce
1/2 cup rice vinegar (or saki or plain vinegar)
1/2 cup vegi broth
2 T fresh grated ginger root or 1 T powered
dash (or more) crushed red pepper to taste
2 T brown sugar
2 T peanut butter
2 t cornstarch in 1 T water
Mix all in sauce pan. Heat til thickened.
Add 1/4 cup sesame oil.