Yes, it’s tiny—and no one knows its name—but this hole in the wall is a new favorite, simply because it’s like no other vibe we’ve seen in the city: an open kitchen and a rustic setting, both a lunch stop and a forum for learning about corn, the ingredient that lent form to Mexican cuisine as we know it today. The big idea came from taco-maker Paulino Martínez, founder of iconic Taquería El Parnita, who reasoned that to make a better taco, you had to get involved starting with corn. It translates to superior grain in everything from sopes and gorditas to atole and tejuino (a slightly fermented corn, brown-sugar and lime beverage).