Restaurants serving Choripans in Buenos Aires

Although porteños prefer to eat sitting down, rather than standing on the sidewalk, like their countparts in Mexico City, there is one favored hand-held food in Buenos Aires that just might classify as a "street food", the ubiquitous "choripan", a beef and pork sausage on a bun slathered with either mayo or chimichurri, the country's iconic, spice condiment.