Kurnik (Russian: курник; "chicken pirog"), also known as wedding pirog or tsar pirog, a dome-shaped savoury Russian pirog, usually filled with chicken or turkey, eggs, onions, kasha or rice, and other optional components. Sometimes, pirog was filled with boiled rooster combs.[1][2][3] This pirog originated in Southern Russia, especially in Cossacks communities, and was used as "wedding pirog" in the rest of the country.[2][3] It is dome-shaped, unlike any other non-sweet pirog. In special cases, it was served to tsar himself.