01 - In a large bowl, whisk together gochujang, soy sauce, honey, rice vinegar, sesame oil, garlic, and ginger until smooth and well combined.
02 - Add chicken pieces to the marinade and toss thoroughly to coat evenly. Let 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 a drop of water sizzles on contact.
04 - Add the marinated chicken pieces to the hot pan and cook for 6–8 minutes per side, until the chicken is cooked through and develops a caramelized, golden-brown exterior.
05 - Remove from heat and sprinkle with toasted sesame seeds and sliced spring onion. Serve hot alongside steamed rice or vegetables.