Kulich is the most important dish of Orthodox Easter. It's a sweet pastry with butter, as well as a bit of alcohol and lots of raisins as a filling. But there are other varieties - one of them is called "Lace baba" kulich.
The pastry called "baba" or "babka" came to Russia from Poland and became popular in the northwestern part of the country. Unlike traditional Russian sweet and dense kulich with lots of raisins