Do National Dishes Really Exist?

What makes a national dish? And who gets to decide? Lale talks to food writer Anya Von Bremzen about her global quest to find out, which she charts in her new book National Dish: Around the World in Search of Food, History, and the Meaning of Home, and checks in with Bon Appetit's Mallary Santucci to find out how the food publication tackles the question in its own test kitchen.