Mashed Potato Candy

Mix mashed potato and 2 cups powdered sugar in good sized mixing bowl. Potatoes will become watery at first. Continue adding powdered sugar until mixture is thick enough to roll. It may not take all the sugar, or it may take more, humidity will cause amounts to vary. Sprinkle powdered sugar on pastry sheet. Take a portion of the potato mixture and roll it out using a powdered sugar coated rolling pin. When mixture is about 1/4 inch thick spread a layer of peanut butter over the potato mixture. Starting on the longest side, roll the dough up into a tight roll. Slice the roll into pieces about 1/2 inch thick. Candy can be stored in a covered container.