1/2 c Minced yellow onion 1/2 c Minced sweet green pepper 2 Cloves garlic, crushed 1/4 c Olive oil 2 ts Chili powder 2 c Tomato puree 1/2 c Red wine vinegar 1/3 c Firmly packed dark brown -sugar 1/4 ts Crushed dried hot red chili -peppers 1 1/2 ts Salt Stir fry onion, green pepper and garlic in oil in a saucepan over moderate heat 5 to 8 minutes until onion is pale golden. Add chili powder and stir fry 1 to 2 minutes. Add remaining ingredients, cover and simmer 30 minutes. Use as a basting sauce for spareribs, beef or poultry.