In a heavy bottom pan, boil 1 litre milk on medium flame.
Then add ¾ cup sugar and mix well until sugar completely dissolves.
Now in another bowl add 3 tbsp corn flour and ¼ cup water. whisk it well so that there are no lumps in it.
Add the cornflour mixture and keep cooking until it become slightly thick and coasts the ladle. Switch off and set aside to cool.
Once mixture completely cool, add mixture into grinding jar and also add ½ cup fresh malai and 1 tsp vanilla essence in it.
Grind the mixture into pulse grinding.
Transfer to an air tight container, freeze for at least 2-3 hours.
After 2-3 hrs again grind semi solid mixture into grinding jar.
Finally transfer to the box and freeze for 8 hrs or overnight. Scoop and serve.