Depending on the type, fresh fruit can affect the shelf life of your cake. In this instance, be sure to use very fresh strawberries, if they're already bruised at the time of making the cake this will significantly shorten the lifespan of your lovely chocolate cake! I do recommend making this cake no more than the day before your event or special occasion. However, you can definitely store any leftover slices in an airtight container in the fridge for an extra day or two (if they make it that far!). To store, place in an airtight container and refrigerate. Note: because this recipe uses fresh strawberries, it’s recommended to serve within 1-2 days.