"Babka" is a word used to describe a sweet, traditional Eastern European cake or bread. It usually has a rich and dense texture with a swirl or layer of filling, such as chocolate, cinnamon, or fruits. Full definition
(You can see her chocolate babka recipe here, from a guest post and interview last year.) (thekitchn.com)
Combining the chocolatey swirls of babka with the eggy volume and richness of challah, this hybrid cinnamon - spiked «babkallah» is a perfectly rational reason for anyone over the age of 14 to eat chocolate for breakfast. (epicurious.com)
The cake was also slightly dry - I think it would benefit from soaking in simple syrup as is often done with babka type cakes. (kingarthurflour.com)