Lightly grease the dehydrator trays with a neutral oil like coconut oil or grapeseed oil. Avoid sunflower oil, as it can impart a bitter taste.
Spread the apple puree evenly across the trays. Aim for approximately 500g of puree per tray for optimal drying.
Sprinkle chopped walnuts, seeds, or shredded apples onto the puree for added texture and flavor. (Optional)
Set the dehydrator to 45–50°C (113–122°F) and let it run for 10–12 hours. Drying time may vary depending on tray load and room humidity. If not fully dried after 10 hours, continue for another 1–2 hours, checking every hour.
Remove the dried roll-ups from the trays and cut into convenient pieces using sanitized scissors.
Roll each piece for easy storage and consumption.