The King Cake is a certain kind of cake that is tied both to the Catholic faith and Mardi Gras in New Orleans. The cake originated in France in the 12th century. It is baked in a circular shape and usually has a plastic or metal baby inside.
The King Cake is historically linked to the 12th night of Christmas, referred to as "Epiphany." "Epiphany" is the day in Christian tradition where the wise men met the baby Jesus. The cake has a small toy baby baked inside, and the person who gets the piece with the baby in it is supposed to host the King Cake party the following year.