I have been searching for the authentic tiramisu for a very long time, although I'm beginning to think that it's impossible as there can be so many variations, and it ultimately depends on what you like.
I only found out two years ago that some people add amaretto. Then there's the instant coffee or expresso punch. More alcoholic burn (boozy), coffee caffeine rush, or chocolate depth. It can be moussy creamy that is densely flavoured or lightened with whipped cream. Or it can be more cake and bread-like with a moist or lighter texture.
In any case, I was most amazed by the one we had in Venice. It was cake-like with less marscapone and zabaglione. The alcohol and coffee was also minimal. The balance was perfect with both the texture and flavour light but present. Completely contrary to practially all the tiramisu's that I've had, this one was perfect for the end of the meal. It was neither heavy nor overpowering. I never knew tiramisu could be so ethereal.

