Start by peeling the onions, and then slice them horizontally into rings.
Place your onion rings into a large mixing bowl. Season them with salt, pepper, smoked paprika, dry mustard, garlic powder, and onion powder.
Toss the onions into an air fryer basket.
Season your liver with salt, pepper, garlic powder, onion powder, dry mustard, and smoked paprika. Season on both sides.
Place the liver on top of the onions in the basket. And set the temperature to 370 degrees F, for 7 minutes.
The liver was fully cooked, so I removed it and placed it on a plate.
I used a pair on tongs and tossed the onions and set the air fryer for another 4 minutes.
Plate, serve, and enjoy!