1 beef chuck roast (4 lbs.)
1 c. ketchup
1 c. barbecue sauce
4 c. chopped celery (optional)
2 c. water
1 c. chopped onion
2 tbsp. vinegar
2 tbsp. brown sugar
2 tbsp. Worcestershire sauce
1 tsp. chili powder
1 tsp. garlic powder
1 tsp. salt
Rolls or buns

Place beef in a Dutch oven. Combine all remaining ingredients except the rolls; pour over beef. Cover and bake at 350 degrees for 5 hours, turning beef occasionally. Shred beef with a fork. Serve on rolls or buns. This also is good in the crock pot.