How to make organic fruit-roll-up type treats?

I see them in the stores, at Whole Foods or HEB - I don't even know what they're called. But they are little gelatin fruit roll up fruit leather type treats made entirely out of fruit - no sugar or fructose syrup or anything - one strip = one piece of fruit/one serving of fruit. Anyway, I would like to know how to make them (mostly because they are $1.50 for like 2 ounces!) for my daughter but I have NO IDEA how to. Are they dehydrated? Cooked? Freeze dried? I'm clueless. Does anyone know what I'm talking about and how to make these things? Thanks!