Barbecue Beef Sandwich
["1 lb. ground beef", "1/2 c. chopped onion", "1/2 c. chopped celery", "1 c. catsup", "1/4 c. water", "1 tsp. paprika", "2 Tbsp. lemon juice", "2 Tbsp. vinegar", "2 Tbsp. brown sugar", "1 Tbsp. ???", "1 tsp. salt", "buns"]
["Saute beef, onion and celery in skillet until lightly browned. Add all other ingredients except buns.", "Simmer 15 minutes.", "Serve over buns.", "Serves 6."]
["ground beef", "onion", "celery", "catsup", "water", "paprika", "lemon juice", "vinegar", "brown sugar", "salt", "buns"]