拿破仑蛋糕, also known as 千层酥, is a popular pastry made of layers of flaky dough filled with cream. It is characterized by its light and airy texture, often topped with powdered sugar or icing. The cake is typically made with 黄油 (butter) and 面粉 (flour), creating a rich flavor. The name "拿破仑" (Napoleon) is believed to be derived from the French pastry called Mille-feuille, which means "a thousand layers." This dessert is enjoyed in various cultures, with each region adding its unique twist to the classic recipe.