Method
Place the chocolate powder in a bowl, over barely simmering water, to melt. Leave to cool.
Whisk the cream until it just forms soft peaks. Don’t over whisk it as it will thicken when mixed with the chocolate.
Beat 2 tablespoons of the cream into the melted chocolate.
Beat in the rest of the cream.
Use half of the chocolate cream to sandwich together the biscuits into the shape of a log.
Spread the remaining cream over the top and sides.
Leave in the fridge for a few hours.
Sprinkle over some chocolate powder to decorate before serving.
