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 the mixture is completely smooth and well combined.
02 - Add the chicken wings to the bowl and toss thoroughly to ensure every piece is evenly coated. Cover the bowl tightly with plastic wrap and refrigerate for at least 2 hours, or ideally overnight for the deepest flavor penetration.
03 - Preheat the oven to 400°F. Line a rimmed baking sheet with parchment paper or aluminum foil to prevent sticking and simplify cleanup.
04 - Remove the wings from the marinade and arrange them in a single, even layer on the prepared baking sheet, leaving space between each piece for proper air circulation. 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 and garnish with toasted sesame seeds and thinly sliced green onions. Serve immediately while hot.