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 and refrigerate for at least 30 minutes, or up to 2 hours for a more pronounced flavor.
03 - Preheat the oven to 400°F. Line a baking sheet with parchment paper, or lightly oil a wire rack set over the baking sheet to allow air circulation beneath the wings.
04 - Place the marinated wings in a single layer on the prepared baking sheet or wire rack. Set aside any remaining marinade for basting later.
05 - Bake the wings for 25 minutes until they begin to develop color and the marinade starts to caramelize.
06 - Remove the wings from the oven and brush with the reserved marinade. Flip each wing to ensure even browning on both sides.
07 - Continue baking for 10 more minutes, or until the wings are golden brown, deeply caramelized, and cooked through to an internal temperature of 165°F.
08 - For an extra crispy exterior, switch the oven to broil on high for 2 to 3 minutes. Monitor closely to prevent burning.
09 - Transfer the wings to a serving platter and sprinkle with toasted sesame seeds and thinly sliced green onions. Serve immediately.