Pour the water in a cooking pot. Let boil.
Add-in the sago or tapioca pearls. Cover and boil in medium heat for 30 minutes. Stir every 10 minutes.
Put-in the sugar. Stir. Continue to boil for 20 minutes. You can add more water if needed.
Turn the heat off. For better results, let the sago or tapioca pearls remain in the cooking pot until it reaches room temperature.