Season chicken thighs with secret seasoning and rub it in well
Dust chicken with baking powder to help skin brown and crisp
Mix 2 parts flour with 1 part cornstarch and additional secret seasoning for the dredge
Spray air fryer basket with oil
Place chicken skin side down in basket and spray with oil again
Cook at 325°F for 12 minutes to slowly render the fat under the skin
Flip chicken so skin side is up
Increase heat to 400°F and cook for 12 minutes until golden and crispy
Remove and serve
