Peel and slice each apple into about 15-20 slices and add to your bowl.
Add the cornstarch to the apples and shake until the apples are well covered.
Add the lemon juice, brown sugar, and cinnamon and shake again until the apples are evenly coated.
Spray the air fryer basket with cooking spray, to prevent sticking, and place the apples in a mostly single layer in the air fryer and cook for 15 minutes. Flip the apples with tongs every 5 minutes.
Repeat step 5 if all of your apple slices did not fit in your air fryer.
Allow to cool slightly before enjoying with your favorite sugary dip!
Notes
Serve with icing or caramel sauce!
Stop cooking at 10 minutes for softer apples, or cook for the full 15 for crispier apples that are starting to carmelize.