Place a tawa on the stove. Now place a large pot on top of the tawa.
Turn the stove to medium-low heat.
Add whole milk, and let it come to a boil.
After it comes to a boil, then take out ⅓ cup of milk and mix in the cornstarch.
Mix it really well, until it's lump-free.
Next mix it well with some evaporated milk.
Mix it well with some sweetened condensed milk.
Now mix it well with heavy whipping cream.
Mix it well with khoya.
Next now add green cardamom powder.
Now cook it down for 1 hour or REDUCED by ⅓ of the whole pot. This process will take about 1 hour. Stir constantly. (you will have ⅔ of the pot remaining)
Add the cornstarch mixture and mix it well for 15-20 minutes.
The milk should reduce more in those 15-20 minutes. Remember stirring constantly.
Mix with the hand blender to smooth out the texture or any lumps from the khoya and cornstarch.
Take out in an ice cream molds, baking loaf pan, or pyrex loaf dish.
Seal it with an air-tight lid or air-tight it with a cling wrap and freeze it overnight or 8 hours.
Enjoy!