Cut the brisket strips into bite-sized pieces.
Prepare vegetables such as onion, carrot, potato, and green onion.
Heat cooking oil in a pan and stir-fry the brisket strips.
Add the prepared vegetables and stir-fry together.
Add seasonings such as soy sauce, sugar, minced garlic, and pepper.
Pour in water and bring to a boil.
Simmer over medium-low heat until all ingredients are cooked.
Once the sauce is reduced, it's ready to serve.