Spray the air fryer basket with cooking spray and preheat it to 380 °F, then lay the wings on paper towels and pat them completely dry. The skin should feel tacky and dry to the touch, not wet or glossy.
Place the wings in a mixing bowl and toss them with olive oil, salt, pepper, and baking powder until every piece is evenly coated. You should see a thin, pale layer on the skin rather than clumps of powder.
Arrange the wings in the basket, spray the tops with cooking spray, and cook them at 380 °F for 18 minutes, shaking the basket halfway through. As they cook, the skin will start tightening and small bubbles will form across the surface.
Raise the heat to 400 °F, spray the wings again with cooking spray, and cook for 5 more minutes or until the internal temperature reaches 165 °F. The final minutes should sound lively with a little hiss and pop, and the wings should turn deep golden brown without drifting into dark brown.
While the wings cook, stir the melted butter or ghee, basil, garlic, parmesan cheese, parsley, and pinch of salt and pepper together in a large bowl. The mixture should look loose enough to coat hot wings and smell strongly of garlic and herbs.
Transfer the fully cooked wings to the bowl of sauce and toss until coated. The hot skin should grab the sauce while still keeping its crackly surface.
Finish with fresh parsley and serve with ranch if you like. The wings are ready when the coating looks glossy, the edges stay crisp, and the aroma is rich and savory.