Whisk 3/4 cup sugar and cinnamon in medium bowl. Set aside.
Bring 1 cup water, butter, 1 tablespoon salt, and remaining 1 tablespoon sugar to boil in heavy medium saucepan, stirring until butter melts. Add flour to mixture and stir until dough forms ball. Cook over medium heat 4 minutes to remove raw flour taste, stirring constantly. Transfer dough to medium bowl. Using electric mixer, beat dough mixture until crumbly, about 1 minute. Add eggs 1 at a time to dough, blending well between additions to form smooth dough.
DO AHEAD: Dough can be made 4 hours ahead. Press plastic wrap directly onto prepared dough and let stand at room temperature until ready to use.
Preheat the oil to 170°C. Working in batches, scoop rounded teaspoonful of dough, then use second teaspoon to scrape dough into oil. Cook dough balls until puffed and golden brown on all sides, about 7 minutes. Using slotted spoon, transfer fritters to paper towels to drain.
Toss zeppole in cinnamon sugar and serve warm.