Thinly slice the potatoes. Place the potato between chopsticks to keep from cutting all the way through the potatoes.
Oil the potatoes and sprinkle on the salt and Cajun seasoning.
Preheat the air fryer at 400 °F for 5 minutes.
Place the potatoes in the air fryer basket and air fry at 350 °F for 15-20 minutes. Check in on the potatoes at 15 minutes, if they aren’t cooked through, cook for an extra 5-6 minutes.
While the potatoes are baking, prepare your toppings.
For ranch sour cream, mix together ranch and sour cream.
Once your potatoes are cooked, top with your favorite toppings and enjoy!