Creating Crispy Buttermilk Air Fryer Chicken is straightforward when you follow these easy steps:

1. Prepare the Marinade: In a large bowl, combine the buttermilk, garlic powder, onion powder, paprika, salt, and black pepper. Whisk until well blended.

2. Marinate the Chicken: Add the chicken pieces to the marinade, ensuring they are fully coated. Cover the bowl with plastic wrap and refrigerate for at least 1 hour, or up to overnight for maximum flavor.

3. Preheat the Air Fryer: Set your air fryer to 400°F (200°C) and allow it to preheat while you prepare the chicken.

4. Prepare the Coating: In a separate bowl, mix the flour and baking powder. This will create a light, crispy coating for your chicken.

5. Coat the Chicken: Remove the chicken from the buttermilk marinade, allowing any excess to drip off. Dredge each piece in the flour mixture, making sure to coat them evenly. Shake off any excess flour.

6. Spray with Cooking Spray: Lightly spray the coated chicken pieces with cooking spray to help achieve a golden-brown color when cooking.

7. Arrange in Air Fryer: Place the chicken pieces in the air fryer basket in a single layer. Avoid overcrowding to ensure even cooking.

8. Cook the Chicken: Air fry the chicken at 400°F (200°C) for 25-30 minutes, flipping halfway through the cooking time. Check for doneness; the internal temperature should reach 165°F (75°C).

9. Rest and Serve: Once cooked, remove the chicken from the air fryer and let it rest for a few minutes before serving. This allows the juices to redistribute for maximum flavor.