KNIFE SKILLS: How to Cut a Potato Potatoes are heavy and unwieldy, with a lumpy round shape that makes them hard to hold steady This is bad news if you want even cuts—and all your fingers The trick is to first slice off one side, creating a stable base to rest the potato on To dice a potato, start by peeling it with a Y-peeler, if peeling Rinse under cold water and use the eye-remover to gouge out any eyes Hold the potato firmly on a cutting board and slice a ẳ- to ẵ-inch-thick slab off one side Turn the potato cut side down and slice lengthwise into planks of even thickness Working with a few planks at a time, stack them and slice lengthwise into even batons Then, for dice, hold a few batons at a time and slice across them to create dice of even width Cut potatoes will discolor, so cook immediately or store in cold water