1-Preheat the oven: preheating your oven to 400°F (200°C) and lining a baking sheet with parchment paper for easy cleanup. Gather all your ingredients ahead of time to keep things flowing smoothly, setting the stage for that perfect puff.

2-Cooking the mixture: in a medium saucepan, combine the water, milk, butter, salt, and sugar over medium heat. Let the mixture come to a boil, stirring occasionally until the butter melts completely. Once boiling, remove from heat and add the flour all at once, stirring vigorously with a wooden spoon to form a dough ball that pulls away from the sides of the pan.

3-Forming and Baking the Dough: Transfer the dough to a mixing bowl and let it cool for a couple of minutes to avoid cooking the eggs too quickly. Add the beaten eggs one at a time, mixing well after each addition until the dough is smooth and glossy this step is key for that airy texture. For even shapes, spoon the dough into a piping bag and pipe it onto your prepared sheet in rounds or logs, depending on what you plan to make.

4-Baking instructions: Bake at 400°F for the first 20-25 minutes to help it rise high.
Then lower the oven to 350°F and bake another 10 minutes to dry it out inside.
Let it cool fully on a wire rack before adding fillings to keep everything crisp.