We did meet "the boss" (mentioned in the Serious Eats post), and she was indeed lovely - much nicer than the woman behind the counter (also mentioned in the post). But we weren't quite as wowed by the food. We ordered one of each kind of tamale - chicken mole and pork. The masa was nice, but the mole flavor was nothing special. We also got 3 kinds of sopes - al pastor, carnitas, and chicken. It seemed like the tortillas had been made a while back and the sopes just assembled upon order, as it was pretty tough to cut through them with plastic knives on styrofoam.
All in all, brownie and I both agreed we probably wouldn't make the 20 minute drive again - not when there's the much better El Chapin restaurant right in downtown Princeton. Or if I'm going to travel for Mexican, I guess it will have to be up to NYC.
La CosteƱita
450 Amwell Road, Hillsborough NJ 08844
908-874-0091