"Way back when," ricotta zeppole were made mostly by the upper class. The peasants used a potato based or just flour based batter. Many Italian great grandmothers/grandmothers have recipes for both versions. Today with ricotta being easily available, the plain zeppole (cheese and potato free) and ricotta zeppole are the most commonly found among street vendors. (There is also a plain flour yeast raised version of zeppole which are sometimes stuffed with chicken livers or anchovies, aka "savory zeppole".) *NOTES: Cooking time is approximate - it depends on how hot your oil is and how many you put in the pan at one time. Yield is approximately 1 dozen.....if you make them large you will get less; if you make them smaller you will get more.