Combine the bournvita and fresh cream in a deep bowl and mix well.if chocolate cream mixture drops from the spoon instantly,then refrigerate it for 10 min.
Combine 3/4 cup of water,sugar ,coffee , milk powder,and butter in a nonstick pan ,mix well and bring to boil and cook on a medium flame for 2 min.while stirring continuosly.
Reduce the flame and cook on a slow flame for 2 min.keep aside to cool slightly.
Place the buiscuit in a deep bowl pour the warm chocolate mixture gradually over it and mix well using a spatula till the chocolate mixture in it and spread it evenly using a spatula .
Place a cake tin mould .pour the buiscuit chocolate mixture in it and spread it evenly using a spatula .
Pour the chocolate cream mixture over it and spread it evenly using the spatula and cover the cake with the whipped cream .
Loosen the sides of the tin with a knife and demould the cake .
Refrigerate for atleast 2 hour.
Buiscuit cake is ready.
