Boil the pasta: Bring a large pot of salted water to a boil. Cook the pasta until just past al dente—about 1–2 minutes longer than package directions for al dente.
Slightly softer pasta crisps more evenly.
Drain and cool: Drain well and spread the pasta out on a baking sheet or large plate. Let it steam off and cool for 2–3 minutes so excess moisture evaporates.
Season: In a bowl, toss the pasta with olive oil, garlic powder, Italian seasoning, onion powder, salt, and pepper. If using parmesan, add it now and toss again to coat.
The oil should lightly coat each piece—add a touch more if it looks dry.
Preheat the air fryer: Set to 390°F (200°C) for 3 minutes. A hot basket helps the pasta start crisping right away.
Air fry in batches: Add the pasta to the air fryer basket in a single layer without overcrowding. Air fry for 8–12 minutes, shaking the basket halfway.
Timing varies by shape and air fryer model. You’re looking for deep golden edges and a firm, crunchy feel.
Taste and adjust: Transfer to a bowl and immediately sprinkle with a pinch of salt or extra parmesan while hot. Repeat with remaining pasta.
Serve: Enjoy warm or at room temperature with your favorite dip.
Marinara is a classic, but ranch or pesto is excellent too.