Moon's Korean Teriyaki Sauce

In college I worked for a Korean gentleman named Moon in his seafood/oriental grocery store. He was a wonderful chef who shared this and other recipes. This is a great marinade for grilled beef and poultry, and doubles as a dip for eggrolls and a substitute for soy sauce in fried rice. The addition of chopped ginger gives a whole different sauce that is good for all the same things. You can thicken it a little with corn starch and stir fry with it too.