In Praise of the All-American Mexican Hot Dog. (NY Times)

“A ketchup-and-mustard hot dog is boring,” continued Ms. Murillo, a high school senior. “They’re not colorful enough. You’ve got to make them colorful, and pile on the stuff. The best hot dogs come from Sonora,” the Mexican state immediately to the south. “Everybody knows that.”

In Tucson more than 100 vendors, known as hotdogueros, peddle Sonoran-style hot dogs — candy cane-wrapped in bacon, griddled until dog and bacon fuse, garnished with a kitchen sink of taco truck condiments and stuffed into split-top rolls that owe a debt to both Mexican bolillo loaves and grocery store hot dog buns.

Many, like Ruiz Hot-Dogs on Sixth Avenue, work step-side carts with two-item menus of Sonoran hot dogs and soft drinks. Set in dirt and gravel parking lots, beneath makeshift shelters, under mesquite tree arbors, these peripatetic vendors serve fast food for day laborers, craftsmen and policemen, the typical patrons of traditional hot dog stands in any town.