4lbsWild plums, as needed scale the recipe as needed
Instructions
Stone the wild plums and add to a large pot, you'll want at least a few pounds. Add a fingers width of water to the pot, cover, bring to a simmer, and cook until the plums have softened and given up their juice, about 20 minutes.
Puree the mixture in a blender until very smooth, then spread 16/th of an inch thick on silicone mats and dry in a warm oven, or a dehydrator at 135 F or on the fruit setting, until no longer tacky, flipping the sheets half way through to speed up the process, about 7-8 hours.
The finished leather can be stored in jars at room temperature, frozen, or refrigerated.
Notes
You can also dry the leather on parchment like Goldstein suggests, stringing up sheets of it on clothesline in the sun, but you'll need to soften the back of the parchment with a warm damp cloth to allow the leather to release.