Solyanka (russian: соля́нка, initially селя́нка; [sɐˈlʲankə] in english "settlers' soup") is a thick and sour soup of russian origin that is common in russia, ukraine, and other states of the former soviet union and certain parts of the former eastern bloc. it was one of the most popular dishes of the former east germany (german: soljanka(-suppe)).
Source: Wikipedia