Cut the chicken into bite-sized pieces.
Cut potatoes, carrots, and onions into large chunks.
Add oil to a pan and stir-fry the chicken.
When the chicken is halfway cooked, add the vegetables and stir-fry together.
Add soy sauce, red pepper powder, minced garlic, and sugar, then mix well.
Pour in 200ml of water and bring to a boil.
Simmer over medium heat for 20 minutes, then add green onions to finish.