How to make
Put the water, oil, salt and black pepper in a pot, on the stove. Once it boils, pour in all the flour at once and stir with wooden spoon until a dough is formed.
Then, take it away from the heat, add the feta cheese and leave it to cool. Then add the eggs one at a time, and stir until it becomes a homogeneous mixture.
With a pastry bag or cream injector, form small pies, arrange them with some space in between them in a tray and bake in a moderate oven.
The mini pies rise and almost double in size. Serve warm.