3 to 4 lb. chuck roast
1 tbsp. dry mustard
2 tbsp. garlic
1 tbsp. pepper
1 tbsp. Worcestershire sauce

Place meat in crock pot. In a small bowl, combine all remaining ingredients. Spread over top of meat. Cook on low until meat falls off bone -- overnight or all day. Cut into bite-sized pieces. Return to crock pot to rewarm. Stir often. Serve on buns.