Beef Barbecue Sauce
["3 lb. ground chuck", "2 green peppers, chopped", "1 onion, chopped", "1 c. celery, chopped", "1 (6 oz.) can tomato paste", "1 (14 oz.) bottle catsup", "1 Tbsp. vinegar", "2 tsp. brown sugar", "salt and pepper to taste"]
["Lightly brown beef; add onion, celery and peppers and cook until tender.", "Add remaining ingredients; cover and simmer about 45 minutes."]
["ground chuck", "green peppers", "onion", "celery", "tomato paste", "catsup", "vinegar", "brown sugar", "salt"]