Whisk together buttermilk and mustard in a baking dish.
1 cup buttermilk, 2 tablespoons Dijon mustard
Add pork chops to the baking dish, turning to coat in buttermilk mixture. Cover and refrigerate for at least two hours or overnight.
4 (8 ounces each) boneless pork chops
In a shallow bowl, combine panko, Parmesan, parsley, paprika, salt and pepper.
1 cup panko bread crumbs, 2 tablespoons grated Parmesan cheese, 2 teaspoons dried parsley flakes, 1 teaspoon paprika, 1 teaspoon kosher salt, ½ teaspoon coarse ground black pepper
Remove pork from buttermilk mixture, letting excess drip off. Coat in panko mixture and place in air fryer in a single layer. If they don't fit, you may need to do them in batches depending on the size of your air fryer. To enhance browning, lightly spray the pork chops with olive oil spray (optional).
Cook for 15 minutes at 400ºF, flip and cook 8 to 10 minutes more, or until internal temperature reaches 145ºF when checked with an instant read thermometer (see notes). Enjoy immediately.
Video
Notes
Pro tip: Don't overcook the pork chops! Overcooked pork chops will be dry and tougher, even with the buttermilk marinade. The best way to check if they're done is use an instant read thermometer; cook just until internal temperature reaches 145ºF. If you slice into the pork chop, it should be slightly pink and juicy, not bloody red. Adjust the cooking time if you have thinner or thicker pork chops.
Thinner pork chops: Pork chops that are ¾ to 1-inch thick should be cooked 7 minutes, flipped, then 5 to 7 minutes more.
Baked breaded pork chops: If you don't have an air fryer, try oven-baked breaded pork chops.
Storage/reheating: Refrigerate leftover pork chops in a covered container for up to 3 days. To re-crisp the breading, reheat the pork chops in your air fryer for 5 minutes or until heated through.