Preheat the air fryer for a couple of minutes at 400°F.
In a large resealable bag, add ½ cup potato starch and several chicken wings and give the bag a shake ensuring the wings are evenly coated. Repeat for all the wings, adding more potato starch if needed.
Place the chicken wings in the air fryer basket without overcrowding and spray evenly with vegetable or canola oil.
Cook the chicken wings at 400°F for 8 minutes, give them a toss and cook for another 7 minutes. You may need to give the wings another spray of vegetable or canola oil at the halfway mark. Remove and set aside. Depending on the size of your air fryer, you may need to cook in multiple batches.
Meanwhile, with a mortar and pestle, coarsely grind white peppercorns. In a small bowl, combine white pepper, five spice powder and coarse kosher salt. Set aside.
Finely chop green onion, separating white and light green parts from dark green parts.
In a wok or large frying pan, on medium heat, add 2 tablespoons vegetable or canola oil, jalapeño and white parts of green onion. Stir fry for 30-60 seconds. Add garlic and stir fry for another 30 seconds, until fragrant. Add the chicken wings, tossing them quickly. Turn off the heat. Add the green onion and cilantro and give them another toss. Season with ½ teaspoon seasoning salt or as much as desired.