With a mortar and pestle, grind together sugar, saffron and cardamom seeds.
In a large mixing bowl, combine sweetened condensed milk, evaporated milk, heavy cream and cool whip.
Using a whisk gently mix everything together. You need to be gentle otherwise cool whip melts very easily making the mixture more watery and you want it light and airy.
Add in saffron, sugar, cardamom mixture and coarsely crushed nuts. Mix well.
Pour mixture into small dixie style plastic cups and cover with plastic or aluminum wrap. If you don't have cups just pour it all in a bowl or a deep dish and cover it with a plastic wrap touching the surface of the liquid.
Freeze Kulfi for at least 4 – 6 hours, preferably overnight.