How long will homemade tirimisu last in the fridge?!
Answers: I'm making tirimisu but not planning on serving until 3 nights away. Too long?
I would suggest you wait until tomorrow to make the tiramisu just to be safe. However, as long as you keep it tightly covered and refrigerated, it should be alright.
Give some consideration of replacing the ladyfingers or cake with Keebler Vienna Fingers. My wife did this once when we couldn't find any ladyfingers, and now we prefer it with the cookies. The cookies stay somewhat crunchy and really adds to the texture of the tiramisu. In fact, we now call tiramisu made with cookies as Marciamisu.
Doc
If you are putting raw egg yolks in the recipe you can only keep it for two days max in the fridge so maybe you should wait until the day before you wouldn't want to poison any of your guests .