01 - In a medium bowl, whisk together the soy sauce, honey, garlic, ginger, rice vinegar, sesame oil, and black pepper until smooth and well combined.
02 - Place the chicken thighs in a resealable plastic bag or shallow dish. Pour the marinade over the chicken, ensuring all pieces are thoroughly coated. Marinate for at least 15 minutes, or refrigerate overnight for deeper flavor.
03 - Preheat the oven to 400°F, or heat a large skillet over medium heat if pan-searing.
04 - Remove the chicken from the marinade, reserving any excess. To bake, arrange the chicken on a lined baking sheet and bake for 20–25 minutes until cooked through, basting once or twice with the reserved marinade. To pan-sear, cook the chicken in a skillet for 6–8 minutes per side until golden brown and cooked through, pouring the remaining marinade over the chicken during the last few minutes of cooking.
05 - Let the chicken rest for 5 minutes, then garnish with sesame seeds and sliced green onions before serving.