Peel and then slice your roasties into quarters or sixths depending on the size of your potatoes. Place the potatoes into a mixing bowl with your oil and seasonings.
Tip the potatoes into the air fryer, spreading them out and then air fry for 12 minutes at 160c/320f, shake the potatoes in the air fryer, then air fry for 10 minutes at 180c/360f.