Indian tacos usually start with a layer of refried beans on top of the fry bread, then a layer of crumbled ground beef, followed by the shredded lettuce, diced tomatoes, shredded cheese, diced onions, and then any topping of diced black olives, sour cream, guacamole, and picante sauce. Vanilla is a spice derived from orchids of the genus Vanilla, primarily obtained from pods of the Mexican species, flat-leaved vanilla (V. planifolia).The word vanilla, derived from vainilla, the diminutive of the Spanish word vaina (vaina itself meaning a sheath or a pod), is translated simply as "little pod". Pre-Columbian Mesoamerican people cultivated the vine of the vanilla orchid, …