Cut the chicken into bite size pieces and put them into a bowl. Mix with 1 tbs soy sauce and ground black pepper by hand or a spoon. Set aside.
Prepare the sauce by combining garlic, hot pepper paste, hot pepper flakes, 2 tbs of soy sauce, and cooking wine in a bowl. Mix it well with a spoon.
Prepare a large, shallow, and wide pan or a grill for the dakgalbi. Spread the cabbage on the bottom of the pan. Add the onion, green chili pepper, carrot, rice cake, and sweet potato.
Add the perilla leaves on top. You can cut them a few times or place the leaves whole. The leaves will shrink when cooked, so don't be afraid to be generous.
Put the marinated chicken in the center of the pan, on top of vegetables. Put the sauce on top.
Cover and cook over medium high heat for 2 or 3 minutes. Stir with a wooden spoon so the pan doesn't burn and ingredients and sauce mix evenly.
Lower the heat to medium and cover. Cook for another 20 minutes, or until it's done. Keep stirring with a wooden spoon.