Clean the chicken thoroughly.
Cut the potatoes, carrots, and onions into bite-sized pieces.
Heat cooking oil in a pan and stir-fry the chicken.
Add the potatoes, carrots, and onions and stir-fry together.
Season with soy sauce, sugar, garlic, and pepper.
Pour 200ml of water, cover, and simmer on low heat.
When the sauce has reduced, it's ready.