I am aware that these two things don't quite go together. But I am looking for both the best crabs in the area (is Cantler's still the best??) as well as the closest place to downtown DC to get good jewish-type of food (herring, white fish, babka etc). I have been going to Wegman,s but wondering if there is a secret haven of this type of food in the city that I am unaware of. Any advice??