Storage: To store Lemon Blueberry Bundt Cake, first, allow it to cool completely to room temperature. Then, wrap it tightly with plastic wrap or aluminum foil to prevent it from drying out. You can store it at room temperature for up to three days or in the refrigerator for up to a week. If you want to keep it for longer, you can also freeze it for up to three months. When you're ready to serve the cake, simply thaw it in the refrigerator overnight and bring it to room temperature before slicing and serving.