Method 
1. Place the cream, sugar and vanilla in a bowl. Using an electric mixer, beat until firm peaks form.
2. Using a pastry brush, brush each biscuit with orange liqueur.
3. Join the biscuits together with a little of the whipped cream, lying on the side to create a log. Cover the entire log with remaining whipped cream. Place in the fridge for 6 hours to allow the flavours to develop.
4. Decorate the log by crumbling crushed peppermint chocolate down the centre. Slice on an angle to serve.
