Coca-Cola Barbeque Sauce

1 C. Coca-Cola
1 C. ketchup
1/4 C. Worcestershire sauce
1 t. liquid smoke
3 T. A.1 Sauce
1 t. onion flakes
1 t. garlic flakes
1/2 t. fresh ground black pepper

Put all ingredients in a heavy saucepan. Bring to a boil slowly. Cook until mixture has been reduced by a quarter. Cool to room temperature and refrigerate.