Banoffee pie

Use a food blender to crush the biscuits into fine crumbs. Melt the butter in a large saucepan and stir in the crushed biscuits until the two bind together. Press the mixture into the base and sides of a 20cm (8in) loose-bottomed cake tin. Chill for 30 mins. For the caramel, melt the butter and sugar over a low heat until the sugar has dissolved and the mixture is golden in colour. Add the condensed milk, stirring continuously and bringing to the boil. Keep the caramel boiling steadily for 2 mins, whilst stirring to make a thick golden caramel. Take the caramel off of the heat and cool. Slice the bananas and arrange most of them over the biscuit base then spread the caramel over the top. Chill for 1hr 30 mins, or until firm. When ready to serve, remove the pie from the tin and place on a serving plate. Fill a piping bag with the whipped cream and squeeze onto the banoffee pie, decorating as desired with the remaining bananas and a light dusting of cocoa powder.