Most varieties of sweet potato will not successfully chip, or hold together during the cooking process when chipped into the traditional square rod shape. Sweet potato turns mushy very quickly during the cooking process, and may also go very chewy if even slightly over cooked
Commercial sweet potato chips have been carefully selected and pre-cooked to hold shape and maintain strength for the a quick hot oil fry finish. Frozen sweet potato chips are generally intended for cooking in the oven
I would suggest you experiment with different sized discs cut from the width of the sweet potato. Using an adjustable depth Mandoline will help with this
