At room temperature:Store the cake in an airtight container for up to 3 days.
In the fridge:Keep it in the fridge for up to 5 days if your kitchen is particularly warm. Allow it to come to room temperature before serving for the best texture.
In the freezer:Wrap the cake (whole or in slices) tightly in clingfilm and place it in a freezer-safe bag. Freeze for up to 3 months. Thaw at room temperature when ready to enjoy.