01 -
Preheat the air fryer to 375°F (190°C).
02 -
In a medium bowl, whisk together buttermilk and egg until fully combined.
03 -
In a separate medium bowl, mix together flour, cornstarch, garlic powder, onion powder, kosher salt, and black pepper.
04 -
Dip each chicken thigh into the buttermilk mixture, allowing excess to drip off, then dredge thoroughly in the dry mixture, pressing to adhere.
05 -
Spray the air fryer basket liberally with olive oil cooking spray to prevent sticking.
06 -
Place coated chicken thighs into the air fryer basket without crowding; cook in batches if necessary. Generously spray chicken with olive oil cooking spray on all sides.
07 -
Cook at 375°F (190°C) for 25 to 30 minutes, flipping halfway through. Reapply olive oil spray after flipping to maintain crispiness. Verify internal temperature reaches 165°F (74°C).
08 -
Remove the chicken from the air fryer and serve immediately with preferred side dishes.