Get your chicken wings ready. If you're using frozen ones, thaw them overnight. Then, pat the wings dry with paper towels. Optionally, you can season them lightly with cooking oil, salt and pepper for a crispier and tastier result.
Preheat the air fryer to 400°F (204°C).
Once preheated, place the wingettes and drumettes in the air fryer and cook them for 20-25 minutes, flipping them halfway for even cooking. Cook until they are golden brown and crispy, or until the internal temperature reaches 165°F (74°C) or higher.
While the chicken wings are air frying, prepare the teriyaki sauce. In a saucepan, combine soy sauce, pineapple juice, sugar, ketchup, rice wine vinegar, garlic cloves, ginger, and pepper. Simmer the mixture for 15-20 minutes until it thickens.
Coat the air fried chicken wings with the teriyaki sauce, tossing them until they are fully covered.
Finally, serve your crispy air fryer teriyaki chicken wings! Sprinkle some toasted sesame seeds on top and enjoy!