Limoncello Tiramisu (Tiramisu al Limoncello)

"Though Treviso is recognized as the birthplace of tiramisù, the precise origins of this phenomenally popular dessert are shrouded in mystery. Imagine my excitement, then, when my friend Celeste Tonon, proprietor of Ristorante da Celeste, passed on to me the original procedures for making this luscious assemblage of ladyfingers (savoiardi) and Mascarpone cream, which Celeste learned from his mentor Speranza Garatti, the true mother of tiramisù, he claims. Her creation was made and served in individual portions, in a goblet or coppa, which I suspect gave rise to its name, which means "pick me up" in the Venetian dialect. One of the delights of making tiramisù is its versatility. This recipe makes a family-style dessert in a large dish, but you can easily compose single servings in dessert glasses, wine goblets, or even elegant teacups for a more impressive presentation, in the style of Signora Garatti's original "coppa imperiale." And while the conventional version of tiramisù calls for espresso-soaked savoiardi, I've found that other flavors can be incorporated into the dessert with great success. Here, the brightness of fresh lemons and limoncello liqueur lace the cream and soaking syrup to make for a tiramisù that is refreshing and irresistible...."