Make the Spice Paste by grinding all the ingredients to a smooth paste in a mortar or blender, adding a little water if necessary to keep the mixture turning. Set aside.
Bring the water to a boil over medium heat in a large saucepan. Add the Spice Paste, salam leaves (if using) and galangal, mix well and bring to a boil again, then simmer uncovered for 2 minute