Peel the sweet potato, rinse it and cut the fries in slices.
In a sealable plastic bag, add the fries with the herbs and pepper. Close bag and shake them until a uniform coat develops around the fries.
Place the contents in the air fryer container and set it to your device's indicated time and temperature. On our unit, it took 20 minutes at 400 F degrees.
Halfway through the baking process, open the container and carefully shake it to turn the fries on a different side, then place it back in to finish baking.