With good reason, many desserts include alcohol in the list of ingredients. Learn how Martha spikes four longtime favorites for an incomparable depth of flavor: a traditional fruitcake loaded with candied fruits and nuts to share with family and friends; an easy plum-and-port crostata made with a flavorful port wine; rum raisin pie with a silken vanilla-rum custard and plump golden raisins; and tiramisu, everyone’s favorite Italian dessert.