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I've only ever made berry based fruit leathers, which are also YUM. The oven, in my opinion, works better than my crappy dehydrator. Probably a lot less power usage too. I'd love to build a multi racked solar dryer which I could pack daily with treats from the garden and creations from my kitchen. One day! :)

You only really need the oven on at 50°C for three hours or so, then leave overnight to set. If it is still a bit too sticky or unset in the morning you can put the oven on again for another hour or two. Maybe quicker than a dehydrator. We used to have a multi-tier one. Got very hot and was very loud. Took ages to dry anything. We don't have it anymore. :)