Grind almonds and pistachios in a blender (not a food processor) by pulsing a few times. At the base- where the blade is- some of the nuts will turn to a flour (powder). This will help thicken the kulfi.
Remove cardamom seeds from their pods. Discard pods and crush seeds till they resemble freshly cracked black pepper. Set aside.
Place pan on medium heat on the stove. Pour in half-and-half.
Separately mix cardamom powder with a tablespoon of the half and half and pour into pot.
Add almonds, pistachios and crushed cardamom seeds.
As the temperature of the half-and-half rises, start to slowly add condensed milk. You will have to do this by a taste test. I find the optimal amount is 200 ml.
Once the mixture starts to steam and bubble, turn the heat to low.
A skin will form on top, just keep stirring it in. You will continue to stir for one hour every five minutes till the mixture thickens and reduces by half.
Allow to cool for 15-20 minutes.
Pour slowly into popsicle moulds or shotglasses.
Place moulds/glasses in freezer.
At the 30 minute mark when the kulfi has started to form, place popsicle sticks in each mould/glass.
Freeze overnight or for at least 8 hours.
To unmould, dip quickly in warm water.
Serve with a scattering of pistachios and almonds.