The mezhivo is an authentic Ukrainian dish. It can be cooked with pepper, eggplant, pumpkin, tomatoes, plums, beetroot, marrow, etc. The mezhivo is frequently made during fast.
If you've read 'Evenings on a Farm near Dikanka' by Russian classical writer Nikolai Gogol, you surely remember how adroitly one of the characters ate vareniki with sour cream that flew into his mouth by themselves. Of course, traditional Ukrainian vareniki don't have such super skills, but their taste is sure to make you think of the Ukrainian cui