I almost wrote this last week, and now I ran into these guys again today - so I felt compelled. Last Friday, there was a street fair on Fulton Street. Today, there was a street fair on Beaver Street (yes, I work in the Financial District). Both times I found, and had lunch from, a "booth" called "Asadero Colombia - carne a la Llanera." They serve thin cut brisket (I think), cooked on a pyramid shaped grilled, suspended over an open hardwood fire (in a kettle grill).
The meat is first cooked on the exterior sides of the "pyramid" grill and then finished directly over the fire. They slice the brisket into strips and serve it with salted, boiled bliss potatoes, plantains, and a clear hot sauce with lettuce, tomatoes, onions, and cilantro. The flavor of the meat is great, though the texture is a little tough. While $10 is high for "street food," I have found this to be very good on both occasions. This is all that they serve (and canned soda). There are three people - a middle-aged man who works the grill, a younger guy who helps sell and serve, and an older woman who takes care of the cash. Anybody else familiar with this or know anything about them/this dish?