01 - In a large 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, tossing thoroughly to coat evenly. Let sit for at least 10 minutes at room temperature, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat a large skillet or grill pan over medium-high heat until it is hot and ready for searing.
04 - Add the marinated chicken to the hot pan and cook for 6 to 8 minutes per side, until the chicken is cooked through and the exterior is deeply caramelized.
05 - Remove the chicken from heat and sprinkle with toasted sesame seeds and thinly sliced spring onion. Serve hot alongside steamed rice or your preferred sides.