Piece of Italy

Thank you, FoodNetwork, for this little piece of goodness...
6 egg yolks
3 tablespoons sugar
1 pound mascarpone cheese
1 1/2 cups strong espresso, cooled
2 teaspoons dark rum
24 packaged ladyfingers
1/2 cup bittersweet chocolate shavings, for garnish
Giada De Laurentiis' directions are as follows; beat egg yolks and sugar until thick and pale, about 5 minutes. Add mascarpone cheese and beat until smooth. Add 1 tablespoon of espresso and mix until thoroughly combined.In a small shallow dish, add remaining espresso and rum. Dip each ladyfinger into espresso for only 5 seconds. Letting the ladyfingers soak too long will cause them to fall apart. Place the soaked ladyfinger on the bottom of a 13 by 9 inch baking dish, breaking them in half if necessary in order to fit the bottom. Spread evenly 1/2 of the mascarpone mixture over the ladyfingers. Arrange another layer of soaked ladyfingers and top with remaining mascarpone mixture.
ANNA'S TIP: When Giada says that dipping ladyfingers too long will cause them to fall apart, she means it, people! Take that advice to heart, especially if you're unable to purchase ladyfingers and need to settle for nilla wafers - dip for 3-4 seconds. Otherwise, you will end up with a tiramisu soup... Also, the directions state to keep in the fridge for at least 2 hours; I think it takes more than that for the mascarpone mixture to settle. I have tried to cut it up before after 2 hours and ended up with a soupy cake - leave it in for at least 3 to 4 hours!