2 lbs. pork roast
1 c. water
3 med. onions, diced
1 1/2 c. ketchup
1/4 c. Worcestershire sauce
1/2 tsp. mustard

Mix all ingredients except pork roast. Pour a small amount of liquid in bottom of crock pot, place pork roast on top and pour remaining liquid over roast. Cover and cook on low for 8 hours. Shred when done and serve without liquid on rolls. Yields 8 servings.