Preheat the air fryer to 400°F
Wash and scrub the potatoes
Dry the potatoes completely
Pierce each potato several times with a fork
Rub the potatoes with a little oil
Sprinkle with salt if desired
Place the potatoes in the air fryer basket
Air fry for 35 to 45 minutes, depending on size
Turn the potatoes halfway through cooking
Check for doneness by inserting a fork or knife
Cook a few more minutes if needed until tender inside
Remove from the air fryer
Slice open and serve with desired toppings