01 - In a large mixing bowl, whisk together gochujang, soy sauce, honey, rice vinegar, sesame oil, minced garlic, and grated ginger until smooth and well combined.
02 - Add the chicken pieces to the marinade and toss thoroughly to ensure even coating. Allow to sit for at least 10 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat a large skillet or grill pan over medium-high heat until the surface is evenly hot.
04 - Add the marinated chicken pieces to the hot skillet and cook for 6 to 8 minutes per side, until the chicken is cooked through and achieves a caramelized, glossy exterior.
05 - Remove the chicken from heat and transfer to a serving platter. Sprinkle with toasted sesame seeds and thinly sliced spring onion. Serve hot alongside steamed rice or vegetables.