Start by preheating your air fryer to 400°F. While it heats up, mix 1.5 tablespoons sinigang powder mix, 1 teaspoon garlic powder, and ½ teaspoon black pepper in a small bowl until well combined.
Take your chicken wings and pat them completely dry with paper towels – this is important for getting them crispy. Put the dried wings in a bowl and toss them with ½ tablespoon olive oil until each piece is coated.
Sprinkle your sinigang seasoning mixture over the oiled wings. Toss everything together until each wing is evenly coated with the seasoning. Make sure to get the seasoning into all the nooks and crannies of the wings.
Place your seasoned wings in the preheated air fryer basket. Don't crowd them – they need space around each piece to get crispy. If you're cooking more than will fit comfortably, do them in batches.
Cook the wings for 25 minutes at 400°F. Halfway through cooking (around 12-13 minutes), open the air fryer and flip each wing over. If your air fryer has a wing mode, it will remind you when it's time to flip.
After cooking, let the wings rest for 3-5 minutes before serving. They should be golden brown and crispy on the outside, with juicy meat inside. Check that the internal temperature reaches 165°F.
Serve your wings while they're still hot. They're great on their own, with your favorite dipping sauce, or traditionally Filipino-style with spiced vinegar or calamansi soy sauce. For a complete meal, serve with hot steamed rice.