Make Ahead Note: The cake layers can be baked 1 day ahead and assembled before serving: wrap tightly in plastic wrap and store in airtight container. Iced cake will keep for 2 to 3 days in airtight container in a cool place. Freeze Note: Un-iced cake layers can be frozen on day of baking, each wrapped in double layer of plastic wrap and a layer of aluminium foil, for up to 3 months. Thaw for 3 to 4 hours on wire rack at room temperature.