Storing Instructions: wrap any unfinished cake in aluminum foil, or any airtight container, and store for up to 2 days at room temperature, up to 4 days in the fridge, or up to 2 months in the freezer. Once you are ready to eat, pull from the freezer and store at room temperature, or in the fridge, overnight. Glaze at least an hour before eating so it has a chance to set.