In a large bowl mix the curry powder and Tumisan Spice Paste with the chicken. Cover and leave it to marinate for at least 15 – 20 minutes.
Heat oil in a pan and fry the whole spices for a minute or so under low heat then add the sliced onion. Fry gently until the onion softened.
Add the chicken, chopped tomato and potato. Stir well then add coconut milk, lime juice and salt and sugar to taste. Cover and simmer over low heat until the chicken is cook and tender.