Cut the chicken into bite-sized pieces.
Slice vegetables like potatoes, carrots, and onions for easy eating.
Add oil to a pan and stir-fry the chicken.
When the chicken is halfway cooked, add the vegetables and stir-fry together.
Season with gochujang, soy sauce, sugar, minced garlic, red pepper powder, and pepper.
Cook over medium heat until the ingredients are well done.
Finish when the sauce has thickened.