Zippy Barbecue Sauce
["1 c. ketchup", "1 c. water", "1/4 c. vinegar", "1/4 c. brown sugar", "1/4 c. chopped celery", "1/4 c. chopped onion", "1 Tbsp. Worcestershire sauce", "2 tsp. dry mustard", "1 tsp. salt", "1/4 tsp. pepper"]
["Mix well; bring to boil.", "Simmer 25 minutes."]
["ketchup", "water", "vinegar", "brown sugar", "celery", "onion", "Worcestershire sauce", "dry mustard", "salt", "pepper"]