Heat a non stick pan on medium. Put khoya and sugar together and mix thoroughly till the sugar is dissolved and everything gets combined.
Make sure that the mixture doesn't get burned. So stir continuously. In the mean time, take a plate and line it with aluminium foil and grease it with some ghee. Keep this aside.
In a micro safe bowl, pour milk, add saffron and put in microwave mode for 20 seconds. When the mixture in the non stick pan becomes soft and the sugar gets completely dissolved, add the saffron milk to it.
Mix well and fry it till all the moisture evaporates. Add 3 to 4 tsp of ghee to it and mix well.
Cook till it becomes thick. Take it off from heat and add cardamom powder. Don't cook it for long as it turns its colour and becomes chewy.
Mix well and transfer it to the aluminium foil plate which you had kept aside. Spread nicely and keep aside to cool.
Once it is cooled, cut it with a knife in any desired shape and serve it. You can garnish with some chopped pista or almond.