The original name of the recipe is mille-feuille in French, meaning "thousand leaves." It is also known as a vanilla slice or custard slice. In the traditional recipe, a mille-feuille consists of three layers of puff pastry arranged with two layers of pastry cream. According to foreign sources, however, the Napoleonic dessert is known as Russian-made, named after the country's victory over the French emperor in 1812. Consisting of at least eight layers of pastry and custard, this time it was inspired by the French mille-feuille and turned into a traditional Russian dish. The classic Russian Napoleon cake is made of thin layers of pastry with sweet pastry cream. The layers are made with the same dough used to make puff pastry, so they are mushy. However, they are very thin and, therefore, delicate in taste.