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 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 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 sheet.
04 - Place the marinated wings 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.
06 - Remove the wings from the oven and brush generously with the reserved marinade. Flip each wing and return to the oven for an additional 10 minutes, or until golden, caramelized, and cooked through to an internal temperature of 165°F.
07 - For an extra-crispy finish, switch the oven to broil on high for 2 to 3 minutes, monitoring closely to prevent burning.
08 - Transfer the wings to a serving platter and finish with a generous sprinkle of toasted sesame seeds and thinly sliced green onions.