I went to great lengths to acquire a bottle of Elisir San Marzano, which has a peculiarly Italian, chocolate-coffee-herbal hit. Feel free to use coffee liqueur or rum or, better still, a mixture ...

Tiramisu cake is ... for the rum. Such options include almond extract, fruit juices, and nut-flavored syrup. Mascarpone is an Italian soft cheese made from cow’s milk cream.