Milk is boiled to separate the cream ("öröm", clotted cream). The remaining skimmed milk is processed into cheese ("byaslag"), dried curds (aaruul), yogurt, kefir, and a light milk liquor ("shimiin arkhi"). The most prominent national beverage is airag, which is fermented mare's milk. A popular cereal is barley, which is fried and malted. The resulting flour (arvain guril) is eaten as a porridge in milk fat and sugar or drunk mixed in milky tea. The everyday beverage is salted milk tea (süütei tsai), which may turn into a robust soup by adding rice, meat, or bansh. As a result of the Russian influence during socialism, vodka has also gained some popularity with a surprising number of local brands (usually grain spirits)".Boortsog" or bawïrsaq is a type of "fried dough" food found in the cuisines of Central Asia, Idel-Ural, Mongolia and the Middle East. It is shaped into either triangles or sometimes spheres. The dough consists of flour, yeast, milk, eggs, margarine, salt, sugar, and fat.