Dried Watermelon: Whether you call it jerky or leather or dried watermelon or dehydrated watermelon, this was a surprisingly enjoyable treat. Drying the watermelon concentrated the fruit's sweetness and it was like a chewy candy. – without any added sugar! Kate used a dehydrator to make these addictive treats: I sliced a quarter of the melon into 1/4"-strips or thinner if you can and then cut off the crescent-shaped rind portion from those slices and then made watermelon chips about the size of regular tortilla chips. My Nesco dehydrator has a setting for fruit, which is 135 degrees F. I plugged it in and let it go overnight (~8-12 hours) and voila! A perfectly textured Jolly Rancher fruit leather!