01 - In a large bowl, whisk together the 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 coat evenly. Cover and refrigerate for at least 30 minutes, or up to 2 hours for deeper 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.
04 - Arrange the marinated wings in a single layer on the prepared baking sheet or rack. Set aside any excess marinade for basting.
05 - Bake for 25 minutes until the wings begin to develop color and the fat starts to render.
06 - Remove from the oven, brush the wings with the reserved marinade, and flip each wing to ensure even caramelization.
07 - Continue baking for 10 more minutes or until the wings are golden, caramelized, and cooked through to an internal temperature of 165°F.
08 - For extra crispy skin, broil on high for 2 to 3 minutes, watching carefully to avoid burning.
09 - Transfer the wings to a serving platter and sprinkle with toasted sesame seeds and thinly sliced green onions before serving.