01 - Preheat your air fryer to 400°F (200°C) for 5 minutes.
02 - Separate the onion slices into individual rings.
03 - In a shallow bowl, whisk together flour, smoked paprika, garlic powder, salt, and black pepper.
04 - In a second bowl, beat the eggs with milk until well combined.
05 - Place panko breadcrumbs in a third shallow bowl.
06 - Working in batches, dredge each onion ring in the seasoned flour, shaking off excess.
07 - Dip into the egg mixture, allowing excess to drip off.
08 - Coat thoroughly with panko breadcrumbs, pressing gently so the coating adheres.
09 - Arrange the coated onion rings in a single layer in the air fryer basket. Do not overcrowd; cook in batches if needed.
10 - Lightly spray the onion rings with cooking spray.
11 - Air fry for 10–12 minutes, flipping halfway through and spraying again if needed, until golden brown and crisp.
12 - Serve hot with your favorite dipping sauce.