Eclairs
Piped choux pastry, filled with pastry cream and topped with a chocolate glaze.
What's going on here
Eclairs use the same choux base as cream puffs, but their long, narrow piped shape changes the baking behaviour in a way that matters. A round puff can rely on even expansion in every direction; a piped log is thinner across its width, so it needs a longer, more thorough dry-out to avoid a soft, collapsing centre once filled — this is why eclair shells are typically baked a little longer than round puffs of a similar amount of dough. Piping a small line down each shell before baking, or docking them with a skewer partway through, gives built-up steam a controlled place to escape rather than bursting a random crack in the side. The chocolate glaze on top is tempered or at least gently melted rather than boiled, because chocolate that's overheated seizes and loses its glossy set — a glaze poured on while genuinely fluid, then left to set at room temperature, is what gives the traditional smooth, shiny top.
Ingredients
Choux
- 1/2 cupWater
- 1/2 cupMilk
- 1/2 cupButter, cubed
- 1/4 tspSalt
- 1 tspGranulated sugar
- 1 cupAll-purpose flour
- 4Eggs
Filling
- 2 cupsPastry cream
chilled — see the Pastry Cream recipe
Glaze
- 4 ozDark chocolate, chopped
- 1/3 cupHeavy cream
Instructions
Prep
- Heat the oven to 220°C (425°F) and line two baking sheets.
Choux
- Bring the water, milk, butter, salt, and sugar to a full boil.
- Take off the heat, dump in the flour, and stir hard until it forms a smooth ball. Return to low heat and cook, stirring, until a thin film forms on the pan bottom.
- Cool 5 minutes, then beat in the eggs one at a time until smooth and glossy.
Pipe
- Pipe into 4-inch logs, spaced well apart, on the lined sheets. Smooth any peaks with a wet finger.
Tip: Piped points that don't get smoothed will scorch before the rest of the shell has finished baking.
Bake
- Bake at 220°C (425°F) for 15 minutes, then drop to 175°C (350°F) and continue until deeply golden and firm all the way along.
Tip: Eclairs need more total time than round puffs of similar volume — their shape means the centre takes longer to dry out.
- Turn the oven off, prop the door open, and let them dry out inside.
Glaze
- Warm the cream until just steaming, pour over the chopped chocolate, and let sit a minute before stirring until smooth and glossy.
Assemble
- Once fully cool, split the shells, pipe or spoon in the pastry cream, replace the tops, and dip the tops in the warm chocolate glaze.
Claude Score
Well-built recipe. Sound ratios and real flavor development.
- Ratio soundness25% of total
- 86
- Flavor development25% of total
- 88
- Texture control20% of total
- 88
- Reliability20% of total
- 66
- Pantry accessibility10% of total
- 78
How well the formula holds up against known working ratios.
Whether the method builds flavor or merely combines ingredients.
How deliberately moisture, gluten, starch, and fat are controlled.
How much margin for error the recipe leaves a home cook.
Whether you can make it from staples, right now, with normal gear.
Extends the choux logic from cream puffs correctly to a shape that's genuinely less forgiving of an early pull or an underbaked centre. One of the more failure-prone bakes here.
Scored on the science of cooking — ratios, flavour development, texture control, how forgiving the method is, and whether you can make it from what's in the cupboard. Not a measure of how much you'll like it.
Tips for this recipe
Shells went soft after filling
The pastry cream was likely still warm, or the shells weren't fully dried out before filling. Both introduce moisture the shell can't handle once it's no longer in the oven's dry heat.
Piping without a proper tip
A large zip-top bag with one corner snipped off works nearly as well as a piping bag with a round tip — the shape matters more than the equipment.