Dry roast the sesame seeds in a pan on medium to low heat. Transfer in a plate and let it cool. In a food processor grind it coarsely.
In a pan melt ghee on medium heat and add jaggery. Let it cook until the jaggery melts. Add in 2 tablespoon of milk and keep stirring continuously until frothy.
Immediately add coarsely ground sesame seeds, pistachios and cardamom powder. Mix it quickly and turn off the gas.
Transfer it to a plate and let it cool to touch.
Grease the modak mould using ghee and start shaping the modak or you can use mould tray to mould.
