Bring a pot of water to a boil. Add the chicken and blanch for 2–3 minutes. Drain and rinse well.
Heat sesame oil in a large pot over medium heat. Add the chicken and cook for about 2 minutes.
Add the sauce and stir well to coat the chicken. Cook for 1–2 minutes.
Add 500 ml water, potatoes, and carrot. Bring to a boil.
Reduce the heat to medium and simmer for 15–20 minutes, until the potatoes are tender and the chicken is cooked through.
Add the green chili and green onion. Cook for another 2–3 minutes, then turn off the heat.