01 - Separate the onion slices into individual rings and set aside.
02 - Prepare three bowls: Bowl 1 with flour, salt, and black pepper mixed; Bowl 2 with whisked eggs and milk; Bowl 3 with panko breadcrumbs, smoked paprika, and garlic powder combined.
03 - Dredge each onion ring in the flour mixture, shaking off excess.
04 - Dip into the egg mixture, ensuring full coverage.
05 - Coat with the seasoned panko, pressing gently to adhere.
06 - Place coated rings on a tray and spray both sides lightly with olive oil.
07 - Preheat air fryer to 400°F.
08 - Arrange onion rings in a single layer in the air fryer basket and cook for 10-12 minutes, flipping halfway through, until golden and crisp.
09 - Whisk all spicy mayo ingredients in a small bowl until smooth.
10 - Serve hot onion rings with spicy mayo on the side.