Weighing criteria like the grade of a restaurant's beef, its preparation, and what else goes into it, we put together a list ...

Ever wonder how Chipotle manages to prepare the perfect barbacoa? Here is how they ensure that each bite is as tender as the last.

chipotle peppers, and lime juice for a rich, smoky taste. The slow-cooking process allows the beef to become incredibly tender, making it easy to shred and ideal for serving in tacos, burritos ...

However using any other cheaper cut of beef is fine too, blade, chuck, shin etc. You can also use other types of meat — pork shoulder (a very cheap cut) is terrific, especially for tacos.