A mono portion, in French known as Petit Gâteau is a dessert composed of a small cake with the crunchy rind and mellow filling that is conventionally served on a plate or displayed in a luxury showcase lined up like a jewelry collection. It’s a style of pastry that contains all the elements of an entremet or mousse cake (varying textures, flavors, and components). A Petit Gâteau usually is not more than three to five bites.