Slice yellow onion into wedges and separate each layer into an onion petal. Place onion pieces into a medium-sized bowl.
Spray onions with nonstick cooking spray, mix them up and spray again.
Sprinkle with Italian bread crumbs and mix well to evenly coat onion.
Season with seasoning salt.
Preheat the air fryer for 5 minutes at 400 degrees.
Place onions into the air fryer basket.
Air Crisp the onions for 4 minutes at 400 degrees.
Shake the air fryer basket and return to Air Crisp for 4 minutes at 400 degrees. Remove from air fryer and enjoy.
Notes
Expert Tips: Do not preheat the air fryer too soon. It should only be preheated for 5 minutes. If making multiple batches of onions, be aware the Air Fryer is heated up and may need less time to create the crispy edges and soft onion petals.