Step 1

Preheat an air fryer to 400 degrees F (200 degrees C) according to manufacturer's instructions.

Step 2

Wash sweet potato and pierce holes throughout. Rub olive oil all over sweet potato using your hands and place in the air fryer basket.

Step 3

Cook in the preheated air fryer for 15 minutes. Turn sweet potato and continue to cook until potato is soft and tender, 15 to 20 minutes more.

Step 4

Cut a slit on top of the sweet potato and top with butter, brown sugar, and cinnamon.