Barbecue Beef On A Bun
["5 or 6 lb. boneless chuck roast", "salt and pepper to taste", "1 c. chopped celery", "2 Tbsp. brown sugar", "1 c. chopped onion", "2 Tbsp. vinegar", "3 Tbsp. Worcestershire sauce", "4 Tbsp. lemon juice", "1 tsp. chili powder", "1 c. catsup", "1/2 c. water"]
["Cover and roast in 300\u00b0 to 325\u00b0 oven for 3 to 4 hours.", "Pull apart with 2 forks and serve on warm buns."]
["boneless chuck roast", "salt", "celery", "brown sugar", "onion", "vinegar", "Worcestershire sauce", "lemon juice", "chili powder", "catsup", "water"]