01 - In a large mixing bowl, whisk together the white miso paste, honey, soy sauce, rice vinegar, sesame oil, minced garlic, grated ginger, and black pepper until a smooth, uniform mixture forms.
02 - Add the chicken wings to the bowl and toss thoroughly to ensure even coating. Cover tightly and refrigerate for at least 2 hours, or preferably overnight to develop deeper flavor penetration.
03 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or aluminum foil to prevent sticking and simplify cleanup.
04 - Remove the wings from the marinade, allowing excess to drip off, and arrange them in a single even layer on the prepared baking sheet. Set aside any remaining marinade for basting.
05 - Bake the wings for 35 to 40 minutes, turning them halfway through and brushing with the reserved marinade, until the skin is deeply golden and the internal temperature reaches 165°F.
06 - Transfer the finished wings to a serving platter and finish with a generous sprinkle of toasted sesame seeds and thinly sliced green onions. Serve immediately while hot.