Qistibi is a popular traditional dish in Tatarstan

Tatarstan

The Republic of Tatarstan is a federal subject of Russia located in the Volga Federal District. Its capital is the city of Kazan, which is one of Russia's largest and most prosperous cities. The republic borders with Kirov, Ulyanovsk, Samara, and Orenburg Oblasts, and with the Mari El, Udmurt,...

 and Bashkortostan

Bashkortostan

The Republic of Bashkortostan , also known as Bashkiria is a federal subject of Russia . It is located between the Volga River and the Ural Mountains. Its capital is the city of Ufa...

. Qistibi is made from the roasted flat cake with various fillings inside. The dough should be non-fermented. The most popular filling is mashed potato

Mashed potato

Mashed potato is made by mashing freshly boiled potatoes with a ricer, fork, potato masher, food mill, or whipping them with a hand beater. Dehydrated and frozen mashed potatoes are available in many places...

 but it may also be ragout

Ragout

-Etymology:The term comes from the French ragoûter, to revive the taste. The etymologically related Italian ragù is a sauce such as Bolognese used typically to dress pasta.-Preparation:...

 or couscous

Couscous

Couscous is a Berber dish of semolina traditionally served with a meat or vegetable stew spooned over it. Couscous is a staple food throughout Algeria, Morocco and Tunisia.-Etymology:...

. Filling is being placed on the one half of the flat cake and is covered by the other half. Later, clarified butter

Clarified butter

Clarified butter is milk fat rendered from butter to separate the milk solids and water from the butterfat. Typically, it is produced by melting butter and allowing the different components to separate by density...

is being used to spread the surface of the flat cakes.