3 lb. boneless chuck roast
2 c. ketchup
1/2 c. vinegar
2 tbsp. Worcestershire sauce
1 lg. onion, chopped
2 bay leaves
2 tsp. dried mustard
1 1/2 tbsp. sugar
2 c. water
Salt & pepper to taste

Brown roast on both sides. Combine all other ingredients and pour over roast. Cook at 350 degrees for 4 to 6 hours or until meat is easy to shred with fork. Shred meat with fork and serve on buns.