Whisk all the dry flour ingredients together in a large bowl until fully combined.
Thoroughly dredge the dry, seasoned chicken pieces in the flour mixture, pressing down firmly to ensure the coating adheres to the surface.
Let the coated chicken rest for 5 to 10 minutes until the flour mixture hydrates slightly and clings to the skin.
Mist the chicken very lightly with water just until the surface feels damp and tacky —ensure it is not overly wet or dripping. Immediately dredge the pieces a second time to create a thin, double-crusted layer of flour mix.
Let the double-coated chicken rest again for 5 to 10 minutes to lock the crust in place.
Fry the chicken at 165°C until it reaches a light golder color and is cooked through. Remove the pieces from the oil and let them rest for 3 to 5 minutes.
Right before plating, flash fry the chicken a second time at 180°C for 45 seconds to get that ultimate, maximum crunch. Drain quickly and serve hot!