Exotic. Tough to find. Fun to say. What better way to turn salads, pasta, beans and rice, even ice cream, into far-out fare than with the addition of yulu seeds? From the bonete, a wild tree native to Mexico, yulus are tiny, crunchy, fiber-packed orbs with a taste that's similar to sunflower seeds. To find yulus, you'll need to chance upon Constantino Aranda, purveyor and master roaster of the sensational seeds, at the Downtown Phoenix Public Market, as well as the Ahwatukee and Mesa farmers markets. Once each year, Aranda crosses the Arizona-Mexico border to bring back yulus harvested by a local tribe, selling them by the bagful until they're gone.