Preheat the air fryer: Set your air fryer to 400°F (200°C) for 3–5 minutes.
A hot basket helps crisp the potatoes right away.
Prep the potatoes: Scrub the russets well. You can keep the skins on for extra texture and nutrients. Cut into 3/4-inch cubes or wedges of similar size so they cook evenly.
Rinse and dry: Place the cut potatoes in a bowl of cold water and swish for 30–60 seconds to remove excess starch.
Drain well and pat them very dry with a clean towel. Dry potatoes = crisp potatoes.
Season: In a large bowl, toss the potatoes with oil, salt, pepper, garlic powder, and paprika. Add any extras you like. Make sure every piece is lightly coated but not drenched.
Load the basket: Add the potatoes in a single layer with a little breathing room.
If needed, cook in batches. Overcrowding leads to steaming, not crisping.
Air fry and shake: Cook at 400°F (200°C) for 10 minutes. Shake the basket or use tongs to flip the pieces. Cook another 8–12 minutes, checking for golden, crispy edges.
Test for doneness: A fork should slide in easily, and the outsides should be browned and crunchy.
If needed, add 2–4 more minutes.
Finish and serve: Toss with a pinch of salt while hot. Add parsley, Parmesan, or lemon zest if you like. Serve right away.