Zeppole are a traditional Neapolitan pastry that is made with a sweet dough that is fried and dusted with powdered sugar. The dough is made with flour, sugar, eggs, butter, and yeast. To make the dough, mix the flour, sugar, eggs, butter, and yeast together in a bowl. Knead the dough until it is smooth and elastic. Let the dough rise for about an hour. Heat some oil in a pan and drop spoonfuls of the dough into the hot oil. Fry the zeppole until they are golden brown on both sides. Remove the zeppole from the oil and drain on a paper towel. Dust the zeppole with powdered sugar and serve hot. Enjoy!