Chop the chicken into 1 1/2 inch pieces. Cut the
potato and onion into pieces about the same size as the chicken.
Heat wok and add oil. Stir-fry the onion, ginger, garlic, green onion, and
curry powder. Stir-fry until the curry odor is strong (about 2 minutes). Add
the chicken and potato and stir-fry for about 5 minutes to coat the chicken
with the curry. Add the chicken broth, sugar, salt, and pepper, cover, and
simmer over low heat for about 15 - 20 minutes, making sure the chicken is
cooked. Use a slotted spoon to remove the chicken, potato, and onion. Check
the sauce and adjust seasoning as required. Add the cornstarch, bring the
sauce to a boil, and stir to thicken. Check the sauce and adjust seasoning
as required. Serve hot over rice.
Variations Traditionally, the dish is made with a whole cut up chicken,
with the bones left in.