http://wikiless.i2p/wiki/Pelmeni?lang=en
In the Urals , they are boiled in plain water, while in Siberia they are boiled in salted water or sometimes meat or chicken broth . [ 12 ] The cooked pelmeni are served alone or topped with melted butter or smetana ( sour cream ), as well as condiments like mustard , horseradish , tomato sauce , and vinegar .