Wash and dry the potatoes before adding to an air fryer basket. Cook for 15-20 minutes at 400ºF or until the potatoes are fully cooked.
Transfer the potatoes to a sheet pan and use the bottom of a cup or mug to smash the potatoes into thin coins, about ¼" each. Don’t over smash or you’ll end up with mashed potatoes.
Drizzle olive oil and seasoning over the potatoes and gently toss to evenly coat.
Add the smashed potatoes back to the air fryer and cook an additional 15-20 minutes at 400ºF, shaking halfway through, until the potatoes are crispy golden brown.