Mix coconut and sugar well. If coconut(thuri) shreds are too coarse, you can run them through a food processor or blender for a few seconds. But usually this is not necessary.
Fry the cashew pieces gently till they are golden brown in the ghee. Set aside.
Lightly spray a cookie sheet with non-stick spray, or grease with a tiny bit of ghee
Transfer to a thick bottomed pan, or Kadai, and stir over medium fire until the mixture begins to separate from the sides of the pan. Add the cashew pieces and cardamom powder and give it a final stir before taking the mixture off the fire
Pour the mixture onto the cookie sheet and spread into a half inch thick layer with a spatula. After it has cooled completely, cut into squares and transfer to an airtight container