What are jo-jo potatoes? Starting in the 1960s, fried potato wedges took that name in some of the Northern states. Jo-jos were often served in restaurants that also made a type of chicken which requires a special type of deep-fat fryer. Jo-jos are simply unpeeled potato wedges thrown in the fryer, but the name may have derived from the idea of “junk,” because the potato scraps were considered worthless until restaurateurs realized they could be marketed and sold. This is part of a complete episode.