I assume you will be suppling a cake box for her to store it in. I put it in the freezer (in the box) and freeze it. Then I remove it from the box and wrap it twice in plastic wrap and then twice in foil. I then return it to the freezer. I did this for my daughter's cake and she said it was just as good as the day she got married. If you want to be even more protected, you could wrap the box in plastic wrap before putting it back in the freezer.
8/16/10 at 7:27pm