Fans of the Great British Baking Show will recognize the ingredient frangipane, a sweet almond-flavored custard found in lots of British and French recipes. Chef Eddy's Fig and Plum Cake, uses frangipane as the main component for a luxurious touch and a nutty almond flavor. This cake recipe is extremely versatile. Feel free to use other fruits such as apricots, mango, raspberries, or blueberries - all of which work equally well.