01 -
Heat the oven to 170°F (75°C), or use a dehydrator set to 135°F (57°C). Line a rimmed baking sheet with a silicone baking mat or parchment.
02 -
Combine the apples, cider, lemon juice, brown sugar, cinnamon, nutmeg, allspice, and salt in a saucepan. Cover and cook over medium-low heat for 15-20 minutes, stirring often, until very soft.
03 -
Puree the apple mixture with an immersion blender or regular blender until smooth and thick. Taste and add a little more sugar only if needed.
04 -
Pour the puree onto the lined pan and spread it into an even layer about 1/8 inch thick. Keep the edges only slightly thicker than the center so they do not dry too fast.
05 -
Bake for 3-4 hours, rotating the pan once, until the surface is dry to the touch and the leather peels away in one flexible sheet. A dehydrator may take 4-6 hours.
06 -
Cool for 10 minutes. Peel the leather from the liner, cut into 8 strips, and roll each strip with parchment paper. Store airtight.