Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      medium        potato -- do not peel
   1                    powdered sugar 
                        Peanut butter

Preparation:

Boil potato in jacket until fork tender. Peel potato and mash in large bowl. Add powdered sugar 1 cup at a time until a firm dough. Roll between waxed paper to 1/4" thick. Remove top layer of waxed paper. Spread peanut butter on potato dough. Roll jelly roll style. Chill until well set. Slice into pretty pinwheel candies.