Prep the wings: Pat the wings very dry with paper towels. Dryer wings = crispier skin. Trim any excess skin or loose bits.
Season and coat: In a large bowl, mix baking powder, cornstarch, garlic powder, onion powder, paprika, salt, and pepper.
Add wings and toss until evenly coated. The mixture should cling lightly without clumps.
Preheat the air fryer: Heat to 390–400°F (200–205°C) for 3–5 minutes. Lightly spray the basket with oil.
Arrange the wings: Place wings in a single layer, not touching.
Work in batches if needed. Lightly mist the tops with oil spray.
Air fry: Cook for 18–22 minutes total, flipping halfway. Aim for deep golden-brown and crispy.
For extra crunch, increase to 425°F (220°C) the last 2–3 minutes. Internal temp should reach 165°F (74°C).
Make the Bang Bang sauce: While the wings cook, whisk mayonnaise, sweet chili sauce, sriracha, honey, and vinegar or lime juice. Adjust heat and sweetness.
Add a pinch of salt to pop the flavors.
Toss and serve: Transfer hot wings to a clean bowl. Add enough sauce to coat (start with half, add more as desired). Toss quickly and garnish with green onions, sesame seeds, and lime.