The main ingredient in a tiramisu is mascarpone cheese. This Italian dessert is characterized by its creamy texture and rich flavor, which is achieved by mixing mascarpone with egg yolks and sugar to create a smooth filling. The dish typically also includes coffee-soaked ladyfingers, which are layered with the mascarpone mixture. Cocoa powder is often dusted on top for added flavor and presentation. Tiramisu has gained international popularity for its luxurious flavor, making it a staple in Italian cuisine and a favorite choice for dessert lovers around the globe.