Preheat oven to 450 degrees.

Combine water and butter in a saucepan and bring to a boil.

Add flour all at once and stir vigorously until a smooth dough forms that pulls away from the sides of the pan.

Remove from heat and let cool slightly for a few minutes.

Beat in eggs one at a time, ensuring each egg is fully incorporated before adding the next.

The dough should be smooth and glossy.

Spoon or pipe the dough onto a baking sheet lined with parchment paper, forming small mounds.

Bake for 10 minutes at 450 degrees, then reduce the oven temperature to 350 degrees and bake for another 10-15 minutes, or until golden brown and puffed up.

Remove from oven and let cool completely on a wire rack before filling.