Peel, wash, boil the potatoes, when it's done, preheat oven to 375 degrees F.
Drain potatoes, add milk and margarine to potatoes and mash well. Stir in the remaining ingredients.
Drop by spoon-full or shape with cookie cutter, place on a greased baking sheet, or ungreased aluminum paper and bake for 10-15 minutes.
Sprinkle with granulated sugar before or after baking the cookies OR sprinkle with icing sugar.