Pat the dill pickle slices thoroughly dry with paper towels to remove excess moisture.
In a shallow dish, place the all-purpose flour.
In a second shallow dish, whisk the egg until well beaten.
In a third shallow dish, combine the panko breadcrumbs, garlic powder, salt, and black pepper.
Dredge each pickle slice first in the flour, ensuring it’s fully coated, then dip it into the beaten egg, letting any excess drip off.
Finally, coat the pickle slice generously with the seasoned panko breadcrumbs, pressing gently to adhere.
Preheat your air fryer to 375°F (190°C).
Arrange the coated pickle slices in a single layer in the air fryer basket, ensuring not to overcrowd. You may need to cook in batches.
Lightly spray the pickle slices with cooking spray.
Air fry for 8-10 minutes, flipping them halfway through, until they are golden brown and crispy.
Serve immediately with your favorite dipping sauce, such as ranch or a spicy aioli.