Wash excess salt off mackerel. Place in a medium pot with enough water to cover it.

Bring to a boil and continue boiling for 20 minutes. Change water and boil another 15 minutes.

Rinse in cold water. When cool enough, pick mackerel into small pieces and place in a bowl removing bones and inedible parts.

Cut up seasonings. Mix coconut milk if using powder and set aside.

Heat medium to large skillet on medium heat. Add oil and heat a little. Add seasonings and sauté around 1 minute.

Add mackerel and coconut milk to pot. Stir and simmer about 5 minutes. Remove from heat and serve.