First crush the biscuits
Then mix condensed milk coco powder & bournvita powder & let it boil
Make a thick paste
Take 1/3 part of the paste & mix well in crushed biscuits & set in a cake tin that biscuit mixture
Pour the rest part of the chocolate mixute on the biscuits mixture & spread all over it
Freeze for 4 to 5 hours then unmold from the cake tin cut & serve cool cool biscuit cake
