Crumble the cookies with your hands, and add to a small bowl with the melted butter. Mix until almost like wet sand, then scoop into a bowl (or how many people you’re serving). Push the crust with a spoon or spatula to make it firm.
Add the double cream to a medium bowl and beat until soft peaks form. Then add the cream cheese, vanilla essence and icing sugar and beat until smooth.
Spoon filling into the bowl with the crust (or divide between bowls) and smooth the top. Put bowl/bowls into fridge and let chill and firm up for about an hour. Serve.