Clean your sweet potatoes thoroughly. Scrub them with an old but clean toothbrush under running water until all dirt is removed from the skin. Dry the potatoes with a paper towel. Set aside.

Prepare your sweet potatoes by poking holes all over the skin with a fork or a knife. DO NOT SKIP THIS STEP.

Mix olive oil and sea salt in a small bowl and brush all over sweet potatoes.

Preheat your air fryer to 390⁰F.

Place sweet potatoes in the air fryer and cook for 40 minutes. The actual cooking time will vary depending on the size of the sweet potatoes. You can check for doneness after 40 minutes. If still undercooked, return to air fryer and cook for another 5 minutes.

Serve hot!