Barbecue Sauce - cooking recipe

Ingredients

1 stick margarine
1 large onion, chopped
2 cloves garlic, minced
1 bottle catsup
1 tsp. chili powder
2 Tbsp. brown sugar
1 Tbsp. Worcestershire sauce
1/3 c. vinegar
1/4 water
1/4 tsp. salt
1/4 tsp. pepper
1/2 Coca-Cola beverage

Preparation

Melt the margarine in a saucepan.
Add the onion and garlic and cook over low heat for about 5 minutes.
Add the remaining ingredients, except cola beverage, and simmer for 30 minutes.
Add cola beverage and simmer for 15 minutes.
Remove from heat.