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 paste forms.
02 - Add the chicken wings to the bowl and toss thoroughly, ensuring every piece is evenly coated. Cover tightly and refrigerate for at least 2 hours, preferably overnight for deeper flavor penetration.
03 - Preheat the oven to 400°F. Line a rimmed baking sheet with parchment paper or aluminum foil to prevent sticking and ease cleanup.
04 - Remove the wings from the marinade, shaking off any excess. 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, flipping them halfway through and brushing with the reserved marinade. Continue baking until the skin is deeply golden and the internal temperature reaches 165°F.
06 - Transfer the finished wings to a serving platter. Sprinkle generously with toasted sesame seeds and thinly sliced green onions. Serve immediately while hot.