Potato candy

The potato candy pinwheel, sometimes shortened to just potato candy, is a rolled candy prepared by mixing mashed potatoes with large amounts of powdered sugar to create a dough-like consistency, and then adding a filling, traditionally peanut butter, and rolling the mix to produce a log-like confection. Potato candy does not require baking and is instead refrigerated in order to fully harden the candy, though it can stay at room temperature following the refrigeration process. Most sources indicate that the potato candy has a shelf life of roughly one to two weeks.

Source: Wikipedia