In a medium saucepan, combine the water and butter over medium heat. Bring it to a gentle boil to melt the butter completely.

Once the mixture is boiling, remove it from the heat and quickly stir in the flour and salt to create a thick paste.

Return the saucepan to low heat and continue stirring for about 2 minutes to cook the flour slightly.

Transfer the dough to a mixing bowl and let it cool for about 5 minutes.

Add the eggs one at a time, mixing well after each addition to ensure a smooth batter.

Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

Using a piping bag, pipe small mounds of dough onto the prepared baking sheet, leaving space between each puff.

Bake in the preheated oven for 25-30 minutes, or until golden brown and puffed.