Choux pastry and éclairs

What it is

Choux is the only pastry you cook twice, once on the stove and once in the oven, and that double cooking is exactly what makes it puff into hollow, crisp shells with almost nothing inside but air. Choux pastry is the dough behind éclairs, profiteroles, cream puffs, and gougères, a simple paste of water or milk, butter, flour, and eggs that rises dramatically through steam alone, with no chemical raising agent at all. Mastering it unlocks a whole family of classic patisserie from one humble base.

The appeal is the transformation. You make a thick, glossy paste that looks nothing like a finished pastry, pipe it into lengths or blobs, and watch it balloon in the oven into light, crisp cases ready to fill with crème pâtissière, whipped cream, or chocolate. For an éclair specifically, you pipe neat fingers, bake them hollow, fill them with vanilla or chocolate pastry cream, and glaze the tops. It feels like a magic trick the first time it works, and genuinely impressive to serve.

The honest truth is that choux is technique-sensitive rather than ingredient-expensive. The paste must be cooked to drive off enough moisture, then cooled slightly before the eggs go in, and the final consistency, how the paste falls from the spatula, matters more than any exact egg quantity, since egg sizes vary. Underbaking is the classic failure, producing shells that collapse into damp pancakes the moment they leave the oven.

Once you can read the paste and trust the bake, éclairs become a reliable showpiece for very little money, and the same dough carries you to profiteroles, croquembouche, and savoury cheese puffs.

How it works

Cook the paste properly before you even think about eggs. Bring your liquid (water, or milk for richer shells) and butter to a full boil together, then tip in all the flour at once and beat hard over the heat for a minute or two until the paste forms a smooth ball and a thin film coats the pan base. This step drives off moisture, and skipping it gives weak, eggy shells that will not puff.

Cool the paste a few minutes, then add beaten egg gradually, beating well between additions. Do not dump it all in. You are watching for consistency, not following a fixed egg count, since a large egg in one country differs from another. The finished paste should be glossy and drop slowly from the spatula in a thick V or ribbon. Too stiff and it will not expand; too loose and it spreads and will not hold an éclair shape.

Pipe with a large star or plain nozzle. For éclairs, pipe straight fingers around 12cm, leaving space between. Bake hot to set the rise, commonly starting around 200°C, then drying out the shells. The cardinal rule: do not open the oven early, and bake longer than feels comfortable. Underbaked choux collapses. Once baked, pierce each shell to let steam escape and dry the insides. Fill cooled shells with pastry cream and glaze.

Benefits

An Impressive Patisserie Showpiece One Dough, Many Classic Pastries Costs Very Little to Make A Genuinely Fascinating Bake Endless Filling and Glaze Options Builds Real Baking Confidence

What you need

Here's what to gather before you start. The essentials are marked.

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Plain flour: a strong all-purpose flour gives a good rise

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Plain flour

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Butter: unsalted, for the paste

Eggs: added gradually by consistency, not fixed count

Milk or water: milk gives richer, browner shells

A piping bag and nozzle: large plain or star tip

A heavy saucepan: to cook the paste over heat

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Heavy saucepan

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Pastry cream or whipped cream: to fill the shells

FAQs

Why do my éclairs collapse after baking?

Almost always underbaking. Choux looks golden and done well before the inside has dried out, so shells that come out too early deflate as they cool because the damp interior cannot support the structure. Bake them longer than feels comfortable, then pierce each one and dry them in the switched-off oven. A properly baked shell feels light and sounds hollow when tapped, and stays crisp rather than slumping on the rack.

How do I know when to stop adding egg?

Watch the paste, not the recipe number. The finished choux should be glossy and fall from the spatula slowly in a thick ribbon or V shape. Add beaten egg a little at a time, beating well, and stop once it reaches that consistency even if you have egg left over, since egg sizes vary. Too stiff and it will not puff; too runny and it spreads instead of holding its piped shape.

Do I need a stand mixer?

No. Choux is traditionally made by hand with a wooden spoon and plenty of arm work, and the initial paste must be beaten over the heat in a saucepan anyway. A stand mixer or electric beater makes adding the eggs easier and less tiring, especially for larger batches, but it is not essential. Many people make excellent éclairs entirely by hand, so a saucepan, a spoon, and some effort are genuinely enough to start.

Can I make the shells in advance?

Yes, which is part of what makes éclairs practical for entertaining. Baked, unfilled choux shells keep for a day or two in an airtight container, and crisp back up beautifully with a few minutes in a warm oven if they soften. You can also freeze baked shells for longer. Fill them only shortly before serving, though, since pastry cream and whipped fillings make the shells go soft fairly quickly once they are in.