Barbecue Sauce - cooking recipe

Ingredients

1 onion
2 Tbsp. butter
1 c. ketchup
1 Tbsp. mustard
2 Tbsp. vinegar
1 Tbsp. Worcestershire sauce
1/2 Tbsp. celery seed
pinch of salt
1/4 c. brown sugar

Preparation

Simmer diced onions in butter.
Mix remaining ingredients and add onions last.
Use for Sloppy Joes or baste on chicken.