Wash and dry the apple thoroughly.

Slice the apple into thin ⅛-inch slices using a sharp knife or mandoline.

Remove any seeds from the slices.

Arrange the apple slices in a single layer on a cutting board or tray.

In a small bowl, mix the granulated sugar and cinnamon.

Sprinkle the cinnamon sugar mixture evenly over both sides of the apple slices.

Lightly spray the air fryer basket with cooking spray.

Arrange the apple slices in a single layer in the basket, avoiding excessive overlap.

Set the air fryer to 300°F (150°C).

Air fry for 15 minutes.

Toss or flip the slices every 5 minutes to ensure even cooking.

During the final few minutes, monitor closely to prevent burning.

Remove the apple chips when golden brown and nearly crisp.

Transfer to a cooling rack.

Allow the chips to cool completely. They will continue to crisp as they cool.

Serve immediately and enjoy.