Cut the tips of the Onion and peel them. Wash the Onions and pat them dry Gently cut 1 cm thick disks. Carefully pull out the inner disk and separate them. If the onion rings are too thin, allow them to have an extra layer.
Gently mix all the dry ingredients and set the shallow bowl aside.
Preheat the Air fryer to 400 degree (200 C ) for 4 minutes. Pull the basket from the air fryer and place the onion rings in them. Slide it back in the air fryer and fry for 9-10 minutes until brown.