Chocolate Babka

This is the ultimate in yeasted coffee cakes. Eastern European in origin, it’s made with a yeasted dough enriched with butter and eggs—the same recipe as for challah, but with double the butter, which makes for a very rich cake.

The dough is left to rise overnight in the refrigerator. The next morning, it’s rolled out, slathered with more butter, and dusted with sugar, chocolate, and nuts. The adorned dough is rolled into a log, cut into spirals, and fitted, free-form, into a