Take a small saucepan and fill it with milk

This should be heated upto 175 degree Celsius

Mix sugar in it till it gets dissolved completely

Allow it to cool after that

Now add the lemon juice and mix well

Take a large bowl and fill it with whipped cream

Beat it till it gets stiff

Now add the cooled milk mixture and vanilla extract

All this should be poured into a 9 inch square dish

Freeze the dish for four hours or until firm, stirring at least once

Once that is done, remove the ice-cream from the freezer 10 minutes before serving