Absolutely, a blueberry dump cake can be made ahead of time, which makes it convenient for events or gatherings where pre-preparation can ease the workload on the day of the event. If you're considering making your blueberry dump cake in advance, here are a few pointers: Baking in Advance: Bake the dump cake as per the recipe. Once cooled to room temperature, cover it tightly with plastic wrap or aluminum foil to prevent it from drying out. Store in the refrigerator for up to 4-5 days. Before serving, reheat individual portions in the microwave or place the entire cake in the oven at a low temperature until it's warmed through. Prepping Without Baking: You can also prepare the cake by layering the ingredients (fruit filling, cake mix, and butter) in the baking dish. Cover the unbaked dump cake and store it in the refrigerator for a day. When you're ready to bake, let it sit at room temperature for about 20-30 minutes, then bake as per the recipe instructions. This ensures that the cake bakes evenly. Freezing: For longer storage, a fully baked blueberry dump cake can be frozen. Wrap it tightly in plastic wrap and aluminum foil or store it in an airtight container. It can last in the freezer for up to 2-3 months. To serve, thaw it in the refrigerator and then reheat. Making the blueberry dump cake ahead of time can save you the hassle and allow for more flexibility, especially when hosting or when your schedule is tight. Just ensure you store it properly to maintain its freshness and flavor.