Cut chicken, onion, potato, carrot, and green onion into bite-sized pieces.
Blanch the chicken in boiling water to remove impurities.
Heat cooking oil in a pan and stir-fry the chicken.
Add onion, potato, and carrot and stir-fry together.
Prepare cup noodles (ramen noodles).
Add water, soy sauce, sugar, and minced garlic, then bring to a boil.
Add the cup noodles and simmer until all ingredients are cooked through.
Finish by adding green onion and sesame oil.