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.
02 - Pat apple slices dry with paper towels to eliminate surface moisture, ensuring better crisping results.
03 - Place apple slices in a single layer in the air fryer basket without overlapping. Cook in batches if necessary to maintain proper air circulation.
04 - Lightly spray or brush slices with oil if desired for enhanced texture.
05 - Sprinkle ground cinnamon evenly over all apple slices. Add optional sugar at this stage if using.
06 - Cook at 325°F for 12-15 minutes, flipping all slices after 7 minutes. Monitor closely during the final minutes to prevent over-browning.
07 - Transfer golden chips to a wire rack and allow to cool completely. Texture will continue to crisp during cooling.
08 - Keep completely cooled chips in an airtight container for up to 5 days.