"Tangy" Beef Barbecue Sandwiches
["6 lb. chuck roast", "1 stalk celery, chopped", "2 large onions", "1 green pepper, chopped", "1 (32 oz.) bottle ketchup", "3 Tbsp. barbecue sauce", "3 Tbsp. vinegar", "2 Tbsp. chili powder", "2 Tbsp. salt", "2 tsp. pepper", "1 1/2 to 2 c. water"]
["Cut meat in chunks and place in Dutch oven.", "Combine remaining ingredients on top of meat.", "Heat until boiling.", "Simmer in oven at 250\u00b0 for 6 hours.", "Pick apart meat with a fork.", "Makes 30 \"tangy\" sandwiches."]
["chuck roast", "celery", "onions", "green pepper", "ketchup", "barbecue sauce", "vinegar", "chili powder", "salt", "pepper", "water"]