In a heavy bottom pan, boil 500 ml of milk.
Soak few strands of saffron in a tablespoon of warm milk and set aside.
Once the milk comes to a boil, lower the flame and continue to stir the milk at regular intervals. After 10 minutes add sugar and mix.
After 20-25 minutes the milk will thicken to desired consistency, add soaked saffron and crushed cardamom.
Also add finely chopped pistachios [if using]. Mix and switch off the flame.