Using a fork, poke holes into the sweet potato. Rub potatoes with oil
Put sweet potatoes into air fryer basket. Cook at 390 Degrees F for 35-40 minutes.
Top with cinnamon/sugar and butter...enjoy.
Depending on your machine and the size of the sweet potatoes, you may need to adjust the time. As the timer nears 3o minutes, you can check the potatoes but inserting a knife into the potato. If the knife comes out easily the potato is done.