Take the aval in a large mixing bowl and add 2 tbsp of water or milk. Mix it well.
Add the remaining 1 or 2 tbsp as need and mix again. All the aval flakes should look moist. You should be careful because too much moisture will make it soggy.
Mix in the grated coconut, sugar (or jaggery), cardamom powder.
Cover and let it rest for 5-10 minutes. This time is perfect for the sugar to melt a bit and mix up with the moisture from the grated coconut. All the flavors will be blended well.