Banana Cake with Caramel Sauce

At home, if there are too many ripe bananas in the fruit bowl they usually end up in this cake. If time allows, make the caramel sauce and pour over the cake, however the cake is fine to eat on its own. The recipe for the caramel sauce is more than enough for the cake (making a smaller amount can become quite difficult without burning) and will keep in the refrigerator for at least 1 week — it also makes a great topping for ice cream. At Bourke Street Bakery we also use the caramel as a bas