Because this cake features real dairy in both its base and its cream cheese frosting, room-temperature counter storage should be limited to 24 to 48 hours in a cool home. Keeping it sealed in its original plastic clamshell container in the refrigerator extends freshness to roughly 5 to 7 days without drying out the crumb.
For those planning to hoard several cartons during its brief retail run, the cake freezes surprisingly well:
- Flash Freeze First: Chill the open container in the freezer for about 45 minutes until the frosting turns rock-solid. This keeps the topping from smearing against wrapping materials.
- Airtight Double Wrap: Pop the solid cake out of its container (or slice it into individual squares) and tightly wrap each piece in plastic wrap, followed by a layer of heavy-duty aluminum foil.
- Deep Freeze Longevity: Properly wrapped, the cake keeps its flavor and texture intact for up to 3 months at 0°F.
- Thawing: Move slices to the refrigerator overnight. For best texture, let a chilled slice sit on the counter for 15 minutes before serving so the fats in the crumb soften to room temperature.