Place chicken pieces into a plastic storage bag and cover with buttermilk. Marinate in the fridge for at least 4 hours or overnight.
Prepare: Remove chicken pieces from buttermilk to a colander to drain. Discard marinade.
Set-up Dredging Station: 1st - Mix together pancake mix, cornstarch, seasoned salt, paprika, garlic powder, onion powder and black pepper in a shallow dish. 2nd - Whisk together eggs and milk in a separate shallow dish. Have nearby a pan to place breaded pieces.
Dredge each chicken piece in dry mixture, dip in egg wash and into dry mixture a second time. Place onto the pan in a single layer. Repeat until all chicken pieces are breaded. (This can be done up to an hour in advance then placed into the fridge until ready to fry)
Heat vegetable oil in a deep pot to 350-360°F. Fry chicken in batches for about 3 minutes total or until golden on both sides and cooked through. Turn as needed for even browning. Maintain cooking temperature while frying. (Cooking time may vary slightly depending on size of chicken pieces.)
Use a slotted spoon and remove to a paper towel lined pan or platter. Season lightly with additional seasoned salt immediately.
Serve hot with your favorite dipping sauces.
Notes
This recipe is designed to be deep fried. That said, you could adapt it for an air fryer. Adjust the cook time according to how your appliance performs and the size of the popcorn chicken.To air fry:
After breading the chicken pieces, place them onto a baking pan and into the fridge uncovered for at least one hour or up to 4 hours for the breading to dry and set.
Spray the basket of an air fryer with cooking spray.
Spray popcorn chicken with cooking spray or an oil mister.
Cook at 375°F in batches in a single layer for 10 minutes stopping to shake the basket halfway through.
After 10 minutes, spray chicken again with cooking spray or an oil mister on all sides.
Continue to cook for an additional 5-7 minutes or just until cooked through, juices run clear and golden. Keep warm until serving.