01 - In a large bowl, whisk together the white miso paste, honey, soy sauce, rice vinegar, sesame oil, minced garlic, grated ginger, chili flakes, and water until the mixture is completely smooth and well combined.
02 - Add the chicken wings to the marinade and toss thoroughly to ensure even coating. Cover the bowl with plastic wrap and refrigerate for at least 30 minutes, or up to 2 hours for deeper flavor penetration.
03 - Preheat your oven to 400°F. Line a baking sheet with parchment paper or lightly grease a wire rack set over the baking sheet to allow air circulation around the wings.
04 - Remove the wings from the marinade, reserving any excess liquid. Arrange the wings in a single, even layer on the prepared baking sheet or wire rack, ensuring they do not overlap for even cooking.
05 - Bake the wings for 25 minutes until they begin to develop color. Remove from the oven and brush generously with the reserved marinade, then flip each wing to ensure even browning on both sides.
06 - Return the wings to the oven and continue baking for an additional 10 minutes, or until the skin is golden, the marinade has caramelized, and the internal temperature reaches 165°F.
07 - For extra crispy skin, switch the oven to broil on high for 2 to 3 minutes, keeping a close eye on the wings to prevent burning from the sugary marinade.
08 - Transfer the finished wings to a serving platter and immediately sprinkle with toasted sesame seeds and thinly sliced green onions. Serve hot.