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 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, though 2 hours will yield deeper flavor penetration.
03 - Preheat your oven to 400°F. Line a baking sheet with parchment paper or lightly oil a wire rack set over the baking sheet to allow airflow beneath the wings.
04 - Remove the wings from the marinade, shaking off excess, and arrange them in a single layer on the prepared baking sheet or wire rack. Set aside any remaining marinade for basting.
05 - Bake the wings for 25 minutes until they begin to develop color and the fat has started to render.
06 - Remove the wings from the oven and brush generously with the reserved marinade. Flip each wing to ensure even caramelization on both sides.
07 - Return the wings to the oven and continue baking for 10 more minutes, or until the skin is golden, the glaze has caramelized, and the internal temperature reaches 165°F.
08 - For an extra-crispy finish, switch the oven to broil on high for 2 to 3 minutes. Watch carefully to prevent burning the glaze.
09 - Transfer the wings to a serving platter and sprinkle generously with toasted sesame seeds and thinly sliced green onions. Serve immediately while hot.