The question often comes up as to whether or not you can freeze tiramisu cake dessert or save it in the refrigerator. Of course tiramisu tastes best when fresh but the good news is yes, you can freeze tiramisu. In fact, I personally prefer when it is made 1 to 2 days ahead and stored in the refrigerator where the flavors are allowed to mix together a bit and to mature. Not to worry, it will keep for up to 4 days in total. Leftovers (if there are any) should be refrigerated immediately though.
Once assembled, the tiramisu can be frozen until you are ready to serve it, in case you are not serving it immediately. An article on the Food Network website suggests “The tiramisu can be frozen for up to 3 months. Wrap the tiramisu (without hazelnut and cocoa topping) in double layer of plastic wrap and layer of aluminum foil. Thaw overnight in refrigerator and top with nuts and cocoa.” Though this may certainly work I have not been able to keep any around for that long so can not confirm that length of freeze time. This is always a very tasty dessert and doesn’t last long in my home. If you do, please let us know.
As far as the individual components are concerned, you can make your ladyfingers or savoiardi well in advance as since they are simply light and sweet sponge cakes roughly shaped like a large finger they can be frozen in the freezer and thawed when ready for use. They are typically soaked in a sugar syrup or liqueur, such as coffee for the tiramisu dessert. The coffee you use should be cool anyway and you can feel free to store it in sealed plastic containerin the refrigerator. In fact in my opinion, if the ladyfingers are just a little stale all the better. They seem to soak up the liquid a little better this way.
There is much debate within the pastry and dessert community as to how long you can actually store your tiramisu and if you should freeze it at all. Keep in mind there are companies who ship frozen tiramisu so you should feel confident in the fact yours will be just fine chilled or frozen. Although I wonder how long you will be able to last before you succumb to the delicious dessert every time you open the freezer or refrigerator door?