Peel and cut plantains into super thin slices. The easiest way to peel a plantain is to first cut the ends and then make about 3 or 4 cuts in the peel lengthwise down the plantain. Do not cut down through the meat – just the skin. Then start at one end and peel the skin down. The key to crunchy chips is slicing the plantain really thin. It’s helpful to use a mandolin vegetable slicer to get super thin slices.