Wash the potatoes and cut them unpeeled into approximately 2 inch chunks. Wash the cut potatoes again or better yet soak them in cold water for 10-20 minutes if time allows. Then drain and dry them thoroughly with a kitchen towel. There should be no moisture left on the surface of your potatoes.
While the potatoes are soaking preheat the air fryer to 200C/400F. You can choose higher temperature for quicker and crispier results depending on how high your model will allow but anything between 200C/400F and 240C/465F will work just fine.
Spray them with an oil spray all over, shake and spray again until evenly coated, then season with salt and your favourite seasoning mix. Put your seasoned potatoes into the basket of an air fryer, select the Air Fry option and cook for 10 minutes. Then take the basket out, shake the potatoes very well, spray again and cook for 8-10 minutes longer until the potatoes are golden on the outside and cooked all the way through.
Notes
Best potatoes for this recipe are Yukon Gold (US) Maris Piper (UK). Avoid red potatoes.