Grind the cashews to a fine powder, in batches. I ground 1 cup of cashew nuts in 4 batches, by pulsing it 8-10 times. Sieve it using a sifter by pressing the powder with the back of a spoon. If you are left with larger cashew nut pieces, collect them all, and grind again further to a fine powder. {Do no skip sifting the powder, as it is essential for that smooth finish}.
Now mix the powdered sugar with the ground cashew nut powder along with few drops of rose essence and make a dough using water, adding little at a time. I used a total of 2 tablespoons. It is ok if you see some oil releasing whilst kneading the dough. It depends on the quality of cashew nuts. The katlis will be air-dried later.
Transfer the dough between two parchment papers or on a greased board, roll out to a thickness of about 1/4-inch.
Place the silver varak if using over the rolled out dough, then cut into diagonal shapes.
Transfer to a tray, let it air dry for 6-8 hours. Once it has dried up completely, transfer to an airtight container.