Take 500 grams of kaju pieces and grind them in a mixer jar using pulse grinding so that oil does not release from the cashews.
Sieve the ground kaju powder. If there are any big pieces, grind them again to make a fine powder. (Refer to video)
Now, in a pan, add 500 ml milk. Stir continuously and cook until it thickens to a mawa-like consistency. This takes around 15–20 minutes.
Transfer the prepared mawa to a bowl and let it cool down.
Then, in a pan, add 1.5 cups or 300 grams of sugar and 1 cup of water. Mix well and heat on medium flame until the sugar dissolves.
Cook the sugar syrup until it reaches one-string consistency. (Refer to video)
Add the prepared mawa and ½ tsp cardamom powder to the sugar syrup and mix well.
Now add the cashew powder and mix thoroughly. Cook the mixture on low flame until it thickens and starts leaving the sides of the pan.
Grease a plastic sheet with ghee, transfer the mixture onto it, and knead it for 2–3 minutes until smooth.
Roll out the mixture on the sheet to a medium thickness. Apply a little ghee on top and place silver vark over it.
Let the mixture rest for 2–3 hours or until it is perfectly set.Cut into diamond shapes.
Serve or store the kaju katli in an airtight container. It stays good for 15 days at room temperature and up to 1 month in the refrigerator.