Place buttermilk in a bowl, then add eggs, red chilli sauce, and black pepper.
Add the chicken to the buttermilk, then refrigerate for 4 or more hours.
Batter:In a large bowl, combine the flour, salt, red pepper flakes, garlic powder, onion powder, and black pepper.
Chicken is dipped in a flour mixture.After dipping, return to the flour mixture.Spray oil on the air fryer basket.Place the chicken in the basket, then spray the tops of the chicken with oil. Flip the chicken over halfway through.
Bake in HYSapientia air fryer oven at 230 degrees for 30 minutes.