Wash and dry the potatoes thoroughly
Pierce each potato several times with a fork
Rub the potatoes with a little oil
Sprinkle with salt if desired
Preheat the air fryer to 400°F
Place the potatoes in the air fryer basket in a single layer
Air fry for 35 to 45 minutes
Turn the potatoes halfway through cooking
Check for doneness by inserting a fork or knife into the center
Add extra time if the potatoes are not tender
Remove from the air fryer and let cool slightly
Slice open and add toppings if desired