My mother used mashed potatoes in her homemade Doughnuts - she left me the recipe - makes one heck of a dough. Can be used to make Sweet dinner rolls, cinnamon rolls, snails and various other tasty things!
Would you mind sharing? Hubby loves homemade doughnuts. I ‘ve even made some with finely ground carrots, once he “misbehaved” so he got a doughnut with horseradish. I wish I had a camera ready with the first 2 chews of that tidbit. The expression was priceless.