Drain the ingredients well, remove the galangal, lemongrass sticks except one which you cut as fine as possible. Keep only one piece of ginger that you cut into small pieces.
Add 2-3 basil leaves and the oil and blend the mixture 2-3 seconds. You must get a thick paste. If you blend too much you will have a creamy paste and it will be impossible to form the meatballs.
Therefore form the patties and place them 4-5 minutes under the very hot grill. Turn them over if necessary when they are halfway cooked.
Before serving you can add finely cut basil with scissors.