A plum cake is a rich, flavorful cake typically made with dried fruits, nuts, and spices, often enjoyed during the holiday season. It has a dense, moist texture and a deep, complex flavor due to the combination of ingredients. The dried fruits, usually a mix of plums, raisins, currants.pices such as cinnamon, nutmeg, and cloves are commonly added to give it a warm, festive aroma. The cake is often studded with chopped nuts, such as almonds or walnuts, adding a bit of crunch. Some versions of plum cake are also glazed with a sugary syrup or icing, giving it a sweet, shiny finish.