Barbecue Sauce
["1/4 c. chopped onion", "1/2 c. chopped celery", "1 c. ketchup", "1/4 c. lemon juice", "2 Tbsp. brown sugar", "3 Tbsp. Worcestershire sauce", "2 Tbsp. vinegar", "1 Tbsp. prepared mustard", "1/2 tsp. salt", "1/4 tsp. pepper"]
["Simmer for about 1 hour.", "Bottle and keep refrigerated."]
["onion", "celery", "ketchup", "lemon juice", "brown sugar", "Worcestershire sauce", "vinegar", "mustard", "salt", "pepper"]