We had this during afternoon tea in my company's Kazakhstan office today - it's called "Chak Chak", a traditional Central Asian dessert. My Kazakh colleagues loved it, our visiting Uzbek, Tajik and Russian colleagues also loved it, and said that it is a childhood favourite of theirs. The Russians called it a Tartar dessert back in Russia.
This is also a common sweet pastry in China & South-east Asia (Singapore, Malaysia, etc.) where the Chinese call it "Sak Kei Ma" - it was introduced to China by the Manchus, and its name was derived from the Manchu word for "to cut".