The best (and most evil) thing we’ve found to dehydrate is mini marshmallows.
Put them on the tray, at the ‘fruit’ temperature.
Leave them there for 3-4 hrs or so.
Remove tray and IMMEDIATELY put them into a ziploc bag and seal it (don’t let them cool off outside the bag!).
Once they’re cool, they’re delicious. But keep the bag sealed when you’re not eating them, they will get sticky and messy fast.
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