Tacos al carbon

If you were in Houston in the 1980’s, it was hard to escape the ubiquitous tacos al carbon. Ninfa Laurenzo—of the eponymous Ninfa’s—made them her signature dish and as with her green sauce, many Houston Mexican restaurants soon added these tacos to their menus as well. Tacos al carbon became a defining characteristic of Houston Tex-MexBut what exactly are tacos al carbon?The term al carbon is the