In a shallow dish, mix together the flour, garlic powder, paprika, salt, pepper, and baking powder.
In a separate shallow dish, beat the eggs with the buttermilk.
In a third shallow dish, spread out the panko breadcrumbs.
Dip each piece of chicken first into the flour mixture, then into the egg mixture, and finally into the panko breadcrumbs. Make sure each piece is well coated with the panko breadcrumbs.
Preheat the air fryer to 400°F.
Place the chicken pieces in a single layer in the air fryer basket, making sure they don’t touch each other. Spray lightly with cooking oil spray.
Cook the chicken in the air fryer for 10-12 minutes or until they are golden brown and crispy, flipping them once halfway through the cooking time and spraying with oil.
Serve the popcorn chicken hot with your favorite dipping sauce!