Savory Barbecue Sauce

1 (12 ounce) can or bottle Stroh's Beer
1 cup chili sauce
1/2 cup molasses
1/4 cup prepared mustard
1 medium onion, chopped
Dash of Worcestershire sauce
Dash of salt and pepper

Put all ingredients into a saucepan. Simmer about 10 minutes. Add more beer or water if needed. Store unused sauce in refrigerator. Makes 3 to 3 1/4 cups.