Heat 2 liters milk, ad 250 gm sugar and cook well till sugar is dissolved.
Now add 2 tbsp stabilize powder, allow cooking till mixture thickens.
Now add few drops of green food color, few drops of pista essence, 150 gm white butter and 1 ½ cup fresh cream.
Then remove from fire, mix well and keep aside to cool.
In ice cream machine fill the sides of container with crushed ice, also add salt with crushed ice every time.
Add milk mixture to the container, cover with lid, fit in machine and turn the ice cream machine on. Keep the machine turn on for 30 minutes.
Now remove a little thickened ice cream mixture in an airtight box. Freeze overnight.
Then remove ice cream in serving bowls, garnish with chopped pistachios and serve chilled.