Let them eat cake. In New Orleans, the king cake has evolved into a braided brioche bread ring that is topped with sugar, usually with a cinnamon-roll like flavor. The sugar alternates in the three colors of Mardi Gras: purple to represent justice, green to represent faith, and gold to represent power. Tucked inside the bread is a favor — commonly called the “baby” as that is its most common form. Traditionally, king cake is first served each year on Twelfth Night, January 6, and is served throughout the Mardi Gras season until Mardi Gras day.