Preheat your oven to 400°F (200°C). Line two baking sheets with parchment paper or silicone baking mats.

Make sure your oven has reached the correct temperature before baking. A properly heated oven is important because the initial heat helps the pastry expand quickly and develop its hollow interior.

If you have a piping bag, fit it with a large round tip. If you do not have one, you can use a sturdy plastic piping bag with the corner cut off or carefully spoon the dough onto the baking sheets.

Prepare a small bowl of water and a clean finger or spoon. You can use a little water to smooth any sharp peaks left on the pastry mounds before baking.

Step 2: Heat the water, butter, sugar, and salt

Place the water, butter, sugar, and salt in a medium saucepan.

Heat over medium heat until the butter has melted and the mixture reaches a full boil. Stir occasionally to help the ingredients combine evenly.

Once the mixture boils, remove it briefly from the heat and add the flour all at once. Adding the flour while the liquid is hot helps it absorb the moisture evenly.

Work efficiently because the dough should begin coming together immediately after the flour is added.

Step 3: Add the flour and cook the dough

Stir the flour into the hot liquid with a sturdy wooden spoon or heat-resistant spatula until no dry flour remains.

Return the saucepan to medium-low heat and continue stirring the dough for approximately 1–2 minutes. The dough should form a cohesive ball and pull away from the sides of the saucepan.

A thin film may develop on the bottom of the pan. This is normal and indicates that moisture is evaporating from the dough.

This step is important because the flour needs to absorb the liquid and the dough must lose some moisture before the eggs are added. If the dough contains too much moisture, the pastry may not hold its shape or develop the desired hollow center.

Transfer the dough to a mixing bowl and allow it to cool for approximately 5–10 minutes, stirring occasionally. The dough should remain warm but not so hot that it cooks the eggs when they are added.

Step 4: Add the eggs gradually

Add the eggs one at a time, mixing thoroughly after each addition. An electric mixer with a paddle attachment can make this process easier, although a sturdy spoon also works.

At first, the dough may look slippery or separated. Continue mixing until each egg is incorporated before adding the next.

After the third egg, check the consistency before adding the fourth. The dough should be smooth, glossy, and thick enough to hold its shape while remaining soft enough to pipe.

When lifted with a spatula, the dough should fall slowly and form a broad V-shaped ribbon. If the dough is too stiff, add a little of the remaining beaten egg at a time.

Avoid adding too much egg. Dough that is overly loose can spread excessively, resulting in flat pastries rather than tall, hollow shells.

Step 5: Pipe the cream puff shells

Transfer the choux pastry dough to the prepared piping bag.

Pipe small mounds approximately 1 1/2–2 inches wide onto the baking sheets, leaving about 2 inches between each mound to allow for expansion.

Hold the piping bag vertically and apply even pressure. When you finish piping each mound, stop squeezing before lifting the bag to reduce the formation of sharp peaks.

If peaks remain, lightly dampen your finger and gently smooth them down.

Try to keep the mounds similar in size so that they bake evenly. Larger pastries may need additional baking time, while smaller ones may finish sooner.

If you are new to piping, do not worry about achieving perfect shapes. Cream puffs are naturally rustic, and a little variation gives homemade pastries their charm.

Step 6: Bake until puffed and golden

Place the baking sheets in the preheated oven.

Bake at 400°F (200°C) for approximately 15 minutes, then reduce the temperature to 350°F (175°C) and continue baking for another 15–25 minutes, depending on the size of the pastries and your oven.

Avoid opening the oven door during the initial baking period. A sudden drop in temperature can cause the shells to collapse before their structure has set.

The cream puffs should become noticeably larger, golden brown, and firm to the touch. Pale pastry shells often contain too much moisture and are more likely to collapse after baking.

When the shells are fully puffed and golden, remove one and check that the interior is mostly hollow and not excessively wet.

For additional drying, turn off the oven and make a small slit in the side of each puff to release steam. Return them to the oven for approximately 5 minutes with the oven off and the door slightly open, if safe for your oven.

Transfer the shells to a wire rack and allow them to cool completely before filling.

Step 7: Prepare the vanilla pastry cream

While the shells cool, prepare the vanilla filling.

In a medium bowl, whisk together the egg yolks, sugar, cornstarch, and a small splash of the milk until smooth. This mixture should be free of lumps.

Pour the remaining milk into a saucepan and heat it over medium heat until steaming but not boiling vigorously.

Slowly pour some of the hot milk into the egg mixture while whisking continuously. This process, called tempering, gradually warms the egg yolks and helps prevent them from scrambling.

Pour the tempered egg mixture back into the saucepan with the remaining milk.

Cook over medium heat, whisking constantly, until the custard thickens and begins to bubble gently. Continue cooking for approximately 30–60 seconds after thickening, while whisking, to help cook the cornstarch properly.

Remove the saucepan from the heat. Stir in the butter, vanilla extract, and salt until the mixture becomes smooth and glossy.

If you notice lumps, strain the custard through a fine-mesh sieve while it is still warm.

Step 8: Cool the pastry cream properly

Transfer the vanilla pastry cream to a shallow, heatproof container.

Place plastic wrap directly against the surface of the custard to prevent a skin from forming. Refrigerate until completely cold, generally at least 2 hours.

Do not leave the custard at room temperature for an extended period. Because it contains milk and eggs, it needs to be cooled and stored safely.

Once chilled, whisk the pastry cream briefly until smooth. If it is very firm, whisking helps restore a creamy texture suitable for piping.

For a lighter filling, you can fold a little separately whipped cream into the cold pastry cream. This creates a softer, more delicate filling, although it may reduce the amount of time the finished cream puffs hold their shape.

Step 9: Fill the homemade cream puffs

Once the shells have cooled completely and the filling is cold, prepare a piping bag fitted with a small round tip.

You have two options for filling the pastries.

Option A: Fill through the bottom.

Make a small hole in the bottom of each pastry shell and pipe the vanilla cream inside until the puff feels pleasantly full. This method keeps the outside of the pastry intact.

Option B: Slice the shells in half.

Use a serrated knife to cut each shell horizontally. Pipe or spoon the vanilla cream onto the bottom half, then replace the top.

This method allows you to see the cream filling and creates a beautiful presentation for dessert platters.

Do not overfill the shells, as excess cream can spill out and make the pastries difficult to handle.

Step 10: Decorate and serve

Arrange the filled cream puffs on a serving plate.

Dust the tops with powdered sugar just before serving. You can also drizzle melted chocolate over the pastries or dip their tops in chocolate ganache for a more elaborate finish.

For a bakery-style presentation, arrange the pastries in a pyramid or serve them individually on dessert plates.

Homemade cream puffs taste best when the shells retain some of their crispness. Because the filling gradually softens the pastry, assemble them as close to serving time as practical.

Keep the filled pastries refrigerated and serve them chilled or slightly cool.