Babka, also known as Kulich, is a sweet yeast cake.
Babka is a spongy, brioche-like yeast cake made mainly in Central and Eastern Europe. It is traditionally baked for Easter Sunday in Poland, Lithuania, Bulgaria, Macedonia, and Albania, and for the major holidays (Christmas, Easter, New Year, Pentecost) in Romania.
Another version of babka is associated with the Eastern European Jewish tradition. This babka is made from a doubled and twisted length of yeast dough and is typically baked in a high loaf pan.
—Babka (cake) from Wikipedia, the free encyclopedia