Tips When thickening the caramel, it’s best to stop cooking when it still seems slightly too thin. As it cools, it will continue to thicken and reach the perfect consistency.
How to store Do not store this shortcake in the refrigerator, as the caramel will become very firm and difficult to cut. Covered tightly, it will keep at room temperature for up to one week. Caramel shortcake also freezes well. Store it in an airtight container and it will keep for up to three months.