In a time prior to the emergence of my consciousness, horse-drawn carts plying the streets of New Orleans sold these wonderful, aromatic rice cakes. They were so popular in the early part of the last century that one of my oldest aunts was nicknamed Cala. They have never been widely available in restaurants; the Old Coffee Pot on St. Peter Street has kept their memory alive almost single-handedly. Calas make a great breakfast or snack. Here’s a recipe derived from one that a radio listener,