Flan cake, also known as leche flan cake or crème caramel cake, is a Filipino chiffon or sponge cake (mamón) baked with a layer of leche flan on top and drizzled with caramel syrup. It is sometimes known as "custard cake", which confuses it with yema cake. Modern versions of flan cake can be cooked with a variety of added ingredients. An example is the use of ube cake as the base.