Preheat the air fryer. Set it to 380°F (193°C). A warm basket helps the potatoes crisp faster.
Spiralize the potatoes. Trim ends if needed, then spiralize into long, curly strands.
If strands are super long, cut them into manageable lengths (8–10 inches) to prevent tangling.
Rinse and dry thoroughly. Place the spirals in a bowl of cold water and swish to release excess starch for 1–2 minutes. Drain, then pat very dry with a towel. Dry potatoes = maximum crisp.
Season. Toss spirals with oil until lightly coated. Sprinkle in salt, pepper, garlic powder, paprika, and onion powder if using.
Toss again so everything’s evenly distributed.
Prepare the basket. Lightly spray the air fryer basket if sticking is a concern. Spread the spirals in a loose, even layer. Do not pack tightly. Cook in batches if needed.
Air fry. Cook at 380°F for 10–14 minutes, shaking or tossing the basket every 4–5 minutes. Watch the last few minutes closely.
You’re aiming for golden edges with a little bend in the center.
Adjust and finish. If some strands brown faster, remove them and keep cooking the rest. Total time depends on thickness and your air fryer model.
Season to taste. Sprinkle a pinch more salt while hot. Add grated Parmesan and chopped herbs if you like.
Serve immediately for best crunch.