John Whaite Banoffee cake recipe on Lorraine

John Whaite makes a delicious looking Banoffee cake on Lorraine. John puts a classic a tasty twist by mixing banoffee pie with cake.

The ingredients for the cake: 280g unsalted butter, softened to room temperature, 280g caster sugar, 280g, about 3 large, very ripe bananas (the blacker the skins, the better), 1tsp vanilla extract/bean paste, 5 large eggs, 280g self raising flour and 1tsp salt.

For the filling: 350g unsalted butter, at room temperatur, 500g icing sugar, ½ can caramel and 2 bananas, sliced into thin disks.