I have the best thing ever - you wash apples really good, cut them into thin slices; you can leave the stem and seeds and they fall out when dried. Then mix sugar with a small amount of cinnamon and after cutting the slices, dip into sugar mixture and put on the dehydrator. I always spray my racks with a little Pam before placing the apples as it makes clean up a little easier and the apples don't stick. You leave them on about 12 hours or so, I suppose it depends a little on your dehydrator but you can check them after 10 or so hours. They are the best snack ever!! I have used several different types of apples and don't notice a big difference.