Preheat the oven to 175°C (350°F).
In a medium pot, combine the water and butter over medium heat.
Once the mixture just begins to boil, take it off the heat.
Add the flour and stir quickly with a wooden spoon until the mixture begins to peel off the sides of the pot and forms a ball.
Add the eggs one at a time, stirring in between until each one is fully incorporated.
Stir the mixture vigorously until it is thick and smooth.
Spoon the mixture into a piping bag with a large starry tip.
Pipe two 3-inch diameter circles, one on top of the other on a lined baking sheet. Continue with the rest of the dough.
Bake for about 30 minutes, or until golden brown.
Turn off the oven and open the door slightly, keeping the zeppole inside until completely cooled.