Preheat air fryer to 400°F (200°C) for 3 minutes
Cut onions into ½ inch rings and separate
Set up breading station — flour in one bowl eggs in second panko and seasonings in third
Dip each ring in flour shaking off excess
Dip in beaten egg letting excess drip off
Coat in seasoned panko pressing firmly
Place in single layer in air fryer basket
Spray generously with cooking spray
Cook for 5 minutes then flip carefully
Spray again with cooking spray
Cook another 5 minutes until golden and crispy
Serve immediately with chipotle dipping sauce