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. Allow to rest 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 a drop of water sizzles on contact.
04 - Arrange the marinated chicken pieces in the hot skillet in a single layer. Cook for 6 to 8 minutes per side until the chicken is cooked through and a caramelized glaze forms on the surface.
05 - Remove the chicken from heat and transfer to a serving plate. Sprinkle generously with toasted sesame seeds and thinly sliced spring onion. Serve immediately alongside steamed white rice or your preferred sides.