Crush some dark
chocolate biscuits in a grinder and transfer into a mixing bowl.
Add butter and mix
well. Put the mixture on a butter paper and spread it evenly. Cut into medium sized rectangles and keep them on a plate. Keep the plate in the refrigerator for about 2 hours.
Mix cream cheese,
whipped cream and castor sugar in a bowl. Fill this mixture into a piping bag fitted with a star nozzle.
Keep a biscuit-mixture
rectangle on each serving plate, pipe some cream mixture rosettes over it, keep another rectangle and repeat the layers once.
Dust some icing sugar
on top of these layers and cover with sliced strawberries. Serve immediately.