Rinse chicken wings under cold running water. Drain well and pat dry
Mix all remaining ingredients (including the optional chili sauce) besides the sesame seeds in a large bowl.
Add the chicken wings and toss to generously coat the chicken wings with the marinade. Cover and refrigerate for at least 1 hour.
Preheat the oven to 350°F (180°C).
Line a baking tray with foil and arrange chicken wings in a single layer. Reserve leftover marinade sauce.
Bake for about 25 minutes and flip the wings if some are catching and burning too quickly. Pour the remaining marinade over the wings, sprinkle a generous amount of sesame seeds on the wings, and continue to bake for another 10 minutes to get the chicken wing skins crispy. Serve hot.