A perfect challah has the following characteristics: a crackly outer shell, with a deep mahogany color. Its interior has a great pull: it doesn't break apart, so you must yank one delicious strand of eggy goodness from the next. Growing up in New York City, I've come across countless bakeries that prepare or stock fresh challah. But finding a great loaf is not easy. So we set out to track down five loaves we loved. More