Grandma Nellie’s Potato Doughnuts

When I was little my grandma made the best donuts from left-over mashed potatoes. Anytime we were having mashed potatoes, I'd beg her to make extra for the donuts, then guard the potatoes during dinner to assure we had fresh potato donuts the next day! I still love to make them and eat them before adding any icing or sugar, just fresh and hot! My grandmother got this recipe from her mother, and remembers enjoying them growing up.