01 - Wash apples thoroughly and remove cores. Using a mandoline slicer or sharp knife, cut apples crosswise into thin rounds approximately 1/8 inch thick for uniform cooking.
02 - Pat apple slices dry with paper towels to remove excess surface moisture, which helps achieve optimal crispiness during air frying.
03 - Place apple slices in a single layer in the air fryer basket without overlapping. Work in batches if necessary to ensure proper air circulation and even cooking.
04 - Lightly spray or brush slices with oil if desired. Sprinkle ground cinnamon evenly over all apple slices. Add coconut sugar or maple sugar if extra sweetness is preferred.
05 - Cook at 325°F for 12–15 minutes, flipping all slices after 7 minutes. Watch closely during the final 2–3 minutes to prevent over-browning.
06 - Remove golden, crisp chips from air fryer and transfer to a wire rack. Allow to cool completely as chips will continue to crisp during cooling. Store in an airtight container for up to 5 days.