Sprinkle the mango with the salt, mix well and set aside for 10 to 15 minutes in a colander to drain. Place the mango in a dry cloth and squeeze out as much liquid as you can.
Grind the chili, shallots and dried shrimp paste to a smooth paste in a mortar or blender, adding a little oil to keep the mixture turning. Add the basil and oil to the ground mixture and