Step 1

Out a piece of plastic wrap over chicken thighs and pound with a meat hammer to stretch and tenderize; set aside.

Step 2

In a large mixing bowl, mix together gochujang, gochugaru (if using), soy sauce, brown sugar, garlic, ginger, corn syrup, rice wine, sesame oil, and pepper. Add the chicken thighs and toss together to coat evenly. Let the chicken rest on a room temperature for 15 minutes.

Step 3

Preheat the oven to broil; place an oven shelving to 5-6 inch below the heat source. Grease a cooling rack with a spray oil and place on top of a large baking pan (half sheet size) lined with foil.

Step 4

Spread the chicken pieces on the rack without overlapping. Broil 4-5 minute or until the surface is slightly charred. Turn the chicken to the other side and broil for another 4-5 minutes or until the chicken is fully cooked. Keep an eye on the chicken so that you don't char them too much.

Step 5

Cut the chicken thighs into a bite size chunks and place in a serving dish. Garnish with thinly sliced perilla leaves and toasted sesame seeds. Serve hot with rice.