Ready in about 40 minutes.
Illustration, not a photo of a cooked batch.
Parboil the potatoes in salted water for 8 minutes, then drain well.
Shake them in the colander to roughen the edges - this makes them extra crispy.
Toss with oil, salt, rosemary and garlic powder.
Preheat the air fryer to 200°C / 400°F.
Air fry for 20-25 minutes, shaking every 8 minutes, until deep golden.
Season with a little more salt and serve hot.
Tips, common mistakes, nutrition and FAQs.