1. Spread out the frozen onion rings equally in the air fryer basket. You may decide not to use an oil spray after all.
2. Then air fry for 10 minutes at 400°F/205°C. About halfway through the cooking, give it a good shake and a gentle toss. If you’re making larger batches or the onion rings aren’t frying evenly, turn them many times in subsequent batches.
3. If necessary, air-fried for a further 1-4 minutes at 400°F/205°C or until crisped to your taste. If you desire, you can season it with salt and pepper.

Check out this video recipe to learn more about cooking frozen rings in the air fryer.