Pate a Choux is a hollow pastry that is often filled with different fillings. The pastries can be sweet in the form of eclair, a St. Honore cake, a cruller donut or savory in the form of a gougere.
Whisk 5 eggs together and set aside.
In a saucepan combine 1/2 cup milk, 1/2 cup water, 1/4 tsp sugar, 1/4 tsp salt & 1/2 cup butter. Bring to a boil over high heat.
Add 1 cup flour all at once. Quickly stir with a spoon to bring the mixture into a dough. Bring the heat to low and continue stirring for another 2-3 minutes to evaporate some of the moisture.