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 cover and refrigerate 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 sheet, or lay them directly on the grill grates. Brush generously 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 using a food thermometer.
06 - If desired, bring any leftover marinade to a boil in a small saucepan and reduce until slightly thickened, then drizzle over the cooked chicken. Sprinkle with sesame seeds and sliced green onions.
07 - Serve hot alongside steamed rice, quinoa, or your favorite vegetables.