01 - In a mixing bowl, whisk together the maple syrup, soy sauce, sriracha, rice vinegar, minced garlic, grated ginger, olive oil, and black pepper until well combined.
02 - Add the chicken thighs to the marinade, turning to coat evenly. Let sit at room temperature for at least 15 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat the oven to 400°F or set a grill to medium-high heat.
04 - Place the marinated chicken thighs on a parchment-lined baking tray or directly onto the preheated grill grates. Brush with any remaining marinade from the bowl.
05 - Bake or grill for 25 to 30 minutes, turning once halfway through, until the chicken is cooked through and the glaze has caramelized. Verify the internal temperature reaches 165°F with a food thermometer.
06 - While the chicken cooks, pour any leftover marinade into a small saucepan. Bring to a boil and reduce until slightly thickened, then drizzle over the cooked chicken before serving.
07 - Sprinkle the finished chicken with sesame seeds and sliced green onions. Serve hot alongside steamed rice, quinoa, or vegetables.