I have been looking for this dessert for over 40 years. I used to eat one almost every day at the BYU-Hawaii Cafeteria. I found it!!!
4 Tlb of a peeled russet potato, cooked and pushed through a mesh strainer
Powdered sugar
Mix mashed potato adding powdered sugar until it is firm enoough to roll out on parchment paper into a rectangle. The mashed potato turns the powdered sugar into amost a liquid. Keep adding powdered sugar.
Spread with peanut butter.
Roll up like a pinwheel/cinnamon roll. Cut thin slices with a serrated knife. Refrigerate.
