Peel the sweet potatoes then slice them into chips. Try and keep as regular as possible so there is a consistent cooking time.
Preheat your air fryer to 180 degrees C.
Put the sweet potatoes in a snap-lock bag then add the oil. Shake the bag so the sweet potatoes are covered in the oil.
Tip the sweet potatoes into the air fryer. Cook for 15 minutes, a little longer if the chips are thick.
Practice Makes Perfect
It too me a long time to work out how long to cook the chips for. If you always add the same amount of chips, cut to the same size this will help you narrow down the best time for you so you get consistent results.