Not bad at all.
Cut the chicken breast into bite-sized pieces.
Clean and cut the onion, carrot, and potato into bite-sized pieces.
Heat cooking oil in a pan and stir-fry the chicken breast.
When the chicken breast is browned on the outside, add the prepared vegetables and stir-fry together.
Add soy sauce, water, and sugar, then boil over high heat.
Simmer on low heat until the potatoes are cooked.
Season with pepper.