If you’ve ever ordered tacos al pastor from a taco truck or a taqueria (in my experience, the more hole-in-the-wall the location, the better), you know how delicious these shaved pork tacos can be.

The humble taco offers an endless array of options for fillings, but if you're grabbing some from your local stand, you've probably got your eye on the three big classics of carne asada, barbacoa, and ...