Method

  1. Scrub the potatoes and dry them completely with a towel. Any surface moisture steams the skin instead of crisping it, so don't skip this.
  2. Poke each potato a few times with a fork. Rub the skins all over with the olive oil, then sprinkle with the salt and pepper, working the seasoning into the oil so it sticks.
  3. Arrange the potatoes directly in the air fryer basket in a single layer, spaced apart so air can move around each one. Don't stack them or lean them against the basket wall.
  4. Air fryer: 400°F, 40 minutes, flipping halfway. Preheating isn't essential here since the long cook time carries it, but a 3-minute preheat helps the skin start crisping right away.
  5. At the 20-minute mark, flip each potato so the side that was down gets equal exposure to the hot air.
  6. Check for doneness by squeezing a potato gently with a towel or piercing it with a paring knife. It should give easily and the knife should slide in with no resistance. If a potato is still firm in the center, give it another 5 to 10 minutes; size varies a lot between potatoes, and a larger one can take noticeably longer.
  7. Remove the potatoes and let them rest for 2 to 3 minutes before slicing them open. Split each one lengthwise, fluff the interior with a fork, and top with butter, sour cream, and chives, or whatever you like.

Tips

  • Pick potatoes that are close in size so they finish cooking at the same time. A basket with one huge potato and three small ones means uneven results.
  • Don't oil the basket itself, just the potato skins. Extra oil pooling in the basket can smoke at 400°F.
  • If your air fryer runs hot or small, check the potatoes a few minutes early the first time you make this; wattage and basket size shift cook times more than you'd expect between models.
  • Skip the foil. Wrapping a potato traps steam against the skin and undoes the crisping you're after.

FAQ

Do I need to preheat the air fryer? Not strictly. A short preheat around 3 minutes gets the skin crisping a bit faster, but the potatoes will cook through either way over the full 40 minutes.

Why is my potato skin soft instead of crispy? Usually it's leftover surface moisture or too much oil pooling in the basket. Dry the potatoes well before oiling, and use just enough oil to coat, not drench, the skin.

Can I make these ahead and reheat them? Yes. Let them cool, refrigerate, then reheat whole in the air fryer at 380°F for about 8 to 10 minutes to re-crisp the skin before splitting and topping.

Is this actually faster than the oven? For most home ovens, yes, mainly because there's no long preheat and the compact air fryer chamber cooks more efficiently. Total hands-off time is close to the same, but you're not waiting on the oven to get there.

Can I cook smaller potatoes the same way? You can, but check them earlier. Smaller potatoes can be done in 25 to 30 minutes, so start checking with a knife around the 25-minute mark to avoid overcooking.