Mix the flour, corn starch, baking powder, garlic powder, onion powder, cayenne pepper and salt in a small bowl.
Place the chicken in a large bowl and add half of the flour mixture. Toss to coat, wait 5 minutes, then add the remaining flour mixture and toss again.
Place the chicken in the air fryer basket or tray in a single layer. A bit of overlap is ok.
Lightly spray with olive oil spray then place the basket in the air fryer and set to 380°F for 23-25 minutes. Half way through the cook time shake or turn the wings.
When the timer is almost complete, melt the butter in a small bowl in the microwave or in a saucepan on the stove. Add the seasonings and parmesan cheese and whisk to combine.
When the chicken has finished cooking remove from the air fryer and place the wings in a large bowl. Pour the butter over the wings and toss until the chicken is well coated.
Sprinkle with additional parmesan cheese, if desired and serve.
Video
Notes
If you prefer to use fresh garlic in the butter sauce you can substitute 2 cloves of crushed or minced garlic for the powder.