Puree 1 quart of berries.
Add 1/4 cup sugar
Just heat through on the stovetop. Strain through cheesecloth to remove seeds.
Dehydrate in a dehydrator or in oven. To dry in an oven just set temp at lowest possible setting --about 140 degress would be good. Dry until fruit feels leather like ;yet pliable. This would probably best be done on parchment paper, Remove the leather while it is still warm and roll it up.