How long does this cake last and how should it be stored?This Lotus Biscoff cake will last for up to a week after baking and should be stored in an airtight container.❄️ Suitable for freezingThe cake is suitable for freezing, either just the sponges, or the decorated cake (minus the biscuits on the top).To freeze the sponges, either place them into an airtight container or wrap them in clingfilm. Defrost them thoroughly before decorating.To freeze the finished cake, either store it in an airtight container, or place it on a freezer-safe dish in the freezer for a couple of hours. Once the buttercream is firm, wrap it in clingfilm. Remove the clingfilm before defrosting, so that the buttercream remains neat.