Split the chicken wings at the joint and remove the tips, leaving you with drumettes and wingettes. Pat the chicken dry with paper towels. In a bowl, toss the chicken with olive oil, baking powder, brown sugar, and dry seasonings.
Spray the air fryer basket with cooking spray. Arrange the chicken pieces in a single layer, making sure they do not touch.
Air-fry for 10 minutes. Flip the wings and cook for another 10 minutes until crispy, golden, and cooked through.
Remove the wings from the air fryer and let them rest for a couple of minutes before serving. If using, toss the chicken wings with the Buffalo sauce until evenly coated. Garnish with parsley.