The king cake is a New Orleans Mardi gras tradition. A baby is hidden inside the cake and brought to a party or a ball as we call it. Whoever gets the baby has good luck throughout the rest of the carnival season and year. It is also their responsibility to bring the cake to the next partytylerdodd25_92 said:Sounds delicious! Never heard of it until now, the tradition is around the new year or? What's it for? (The tradition). I'd be interested in trying it if you can order online somewhere.