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 penetration.
03 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly oil a wire rack set over the 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, leaving space between each piece. Set aside any remaining marinade for basting.
05 - Bake the wings for 25 minutes until the exterior begins to set and lightly color.
06 - Remove the wings from the oven and brush with the reserved marinade. Flip each wing to ensure even caramelization on both sides.
07 - Continue baking for 10 more minutes, or until the wings are golden brown, caramelized, and cooked through to an internal temperature of 165°F.
08 - For an extra-crispy finish, turn the broiler to high and cook for 2 to 3 minutes, keeping a close watch to prevent burning.
09 - Transfer the wings to a serving platter and sprinkle generously with toasted sesame seeds and thinly sliced green onions. Serve immediately.