Grind cashew nuts in a grinder. Make sure that you don't grind too much as the cashew might releases the oil, which can make the powder coarse. Now using a sieve extract the fine powder and keep it aside.

Boil sugar and water in a pan on low flame. Meanwhile grease a plate and keep aside. Keep butter paper ready too.

Boil sugar syrup and make one thread consistency. Now add cashew powder and mix. Keep stirring on low flame.add cardamom powder. The cashew mixture would start thickening. Cook the cashew mixture approximate 5-7 minutes till the whole mixture starts to come together.

Remove the mixture from heat and place it on greased plate. Flatten the cashew katli dough and place a butter paper on top and roll gently with the help of rolling pin. Roll gently the dough from all sides till you reach a thickness of 3.5 mm in the dough.

Remove the butter paper and let the cashew katli completely cool down. Apply silver berq. Using a sharp knife cut the cashew katli in diamond shape. Remove the katli with the help of knife. Keep it in air tight container.