1Cut onions into 1 cm thick slices and carefully separate into rings.
2Set up a breading station: one bowl with flour, one with beaten eggs, and one with breadcrumbs mixed with paprika, garlic powder, salt, and pepper.
3Coat each onion ring first in flour, then in egg, then in the breadcrumb mixture, pressing lightly to adhere.
4Lightly brush or spray the breaded onion rings with olive oil to help them become golden and crispy.
5Preheat the air fryer to 200°C (400°F).
6Arrange onion rings in a single layer in the air fryer basket. Cook for 8-10 minutes, shaking the basket halfway through, until golden and crispy.