Coca-Cola BBQ Sauce

2 medium onions

3/4 cup Coca-Cola

3/4 cup ketchup

2 tablespoons vinegar

2 tablespoons Worcestershire sauce

1/2 teaspoon chili powder

1/2 teaspoon salt

Shred or blender-chop onions. Combine all ingredients. Bring to a boil; cover pan; reduce heat and simmer about 45 minutes until sauce is very thick. Stir occasionally.