Cut the boneless chicken thigh into bite-sized pieces.
Slice cabbage, onion, and carrot into easy-to-eat pieces.
Mix gochujang, gochugaru, soy sauce, erythritol, minced garlic, ginger, and pepper to make the marinade.
Marinate the chicken with the sauce for 15 minutes.
Heat cooking oil in a pan and stir-fry the chicken.
When the chicken is cooked, add vegetables and tteokbokki rice cakes, then stir-fry together.
Once all ingredients are cooked and the sauce has thickened, it's ready to serve.