Kurnik (Russian: курник; "chicken pirog"), also known as wedding pirog or tsar pirog, is a dome-shaped savoury Russian pirog (loosely, a pie) usually filled with chicken or turkey, eggs, onions, kasha or rice, and other optional components. Sometimes filled with boiled rooster combs,[1][2][3] this pirog originated in Southern Russia, especially in Cossack communities, and was used as a "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. Even today, this pirog is served on special occasions in most of Russia.[3]