A croissant (/krəˈsɒnt/ or /ˈkrwʌsɒŋ/; French pronunciation: [kʁwa.sɑ̃]) is a buttery, flaky, viennoiserie or Vienna-style pastry named for its well-known crescent shape. Croissants and other viennoiserie are made of a layered yeast-leavened dough. The dough is layered with butter, rolled and folded several times in succession, then rolled into a sheet, in a technique called laminating.