Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
                        -liz jones
   3      pounds        beef rump roast
   3      tablespoons   flour
  15      ounces        tomato sauce
     1/2  cup           onions -- chopped
     1/3  cup           brown sugar -- packed
   2      tablespoons   lemon juice
   1      tablespoon    beef bouillon -- instant
   1 1/2  teaspoons     chili powder
   1      clove         garlic -- chopped fine
   1      teaspoon      dry mustard
                        hamburger buns

Rub flour into roast. Place in bottom of crockpot and add remaining ingredients, except buns. Cook on LOW for abour 14 to 16 hours. Serve over buns.