01 - In a mixing bowl, whisk together the buttermilk, salt, black pepper, garlic powder, and paprika until evenly combined. Add the chicken strips, turning to coat thoroughly. Allow to marinate for at least 10 minutes, or up to 2 hours in the refrigerator for deeper flavor penetration.
02 - In a shallow bowl or dish, combine the panko breadcrumbs, all-purpose flour, paprika, onion powder, cayenne pepper if using, and salt. Mix until the seasonings are evenly distributed throughout the breading.
03 - Set the air fryer to 400°F and preheat for 3 minutes to ensure even cooking and a crisp exterior.
04 - Remove each chicken strip from the buttermilk marinade, letting the excess drip off. Dredge in the breadcrumb mixture, pressing lightly on all sides so the coating adheres firmly to the chicken.
05 - Place the breaded tenders in a single layer in the air fryer basket, leaving space between each piece for proper air circulation. Spritz lightly and evenly with olive oil spray.
06 - Cook at 400°F for 10 to 12 minutes, flipping the tenders halfway through the cook time, until the exterior is golden brown and the internal temperature registers 165°F on a meat thermometer.
07 - Transfer the tenders to a plate and serve immediately with your preferred dipping sauces, alongside fries or a fresh salad.