Harby's Barbeque Sauce

1 c Water 1 T Soy sauce 1/3 c Vinegar, white 2 t Onion powder 3 T Cornstarch 1 1/2 t Paprika 6 T Sugar 1/2 t Garlic salt 1/2 c Ketchup 1/2 t White pepper Mix very well. Heat in 2 quart saucepan, stirring constantly until thickened and clear.