Rinse and drain cranberries. Drain well, but do not dry.
Line a pan with parchment paper, and lay out the cranberries in a single layer. You want them to have a little bit of moisture, but not be soaking wet.
Sprinkle the gelatin and sugar/sweetener over the cranberries, and toss to combine. Place in dehydrator for 4-6 hours. Alternatively, you can put into an oven at the lowest setting for 6-8 hours or until desired doneness. These should be crunchy on the outside, and soft and chewy in the middle.