Eclair (エクレア, Ekurea)

Ingredients

Equipment Needed

• •Digital scale
• •Heavy saucepan
• •Wooden spoon or heatproof spatula
• •Pastry bag with a 12 to 15mm open-star tip, plus a small round filling tip
• •Parchment-lined baking sheets marked with guides
• •Fine-mesh sieve
• •Wire rack

Instructions

1. 1

   Cook the custard

   Warm the 500ml milk in a saucepan until the edge trembles and the surface looks glossy. In a bowl, whisk the yolks, 90g sugar, cornstarch, cake flour, and a pinch of salt until smooth and pale. Pour in a little hot milk while whisking, then add the rest. Return everything to the pan and cook over medium heat, whisking constantly, until it thickens, bubbles once or twice, and loses the raw starch smell. Keep cooking for one full minute after it thickens. That minute matters, because undercooked starch tastes chalky and thins as it cools.

2. 2

   Chill the cream

   Take the custard off the heat and whisk in the 30g butter and vanilla until the surface shines. Press it through a fine sieve if you see any lumps, then press plastic wrap directly onto the surface and chill until cold, at least 2 hours. The wrap keeps a skin from forming, and a cold cream pipes cleanly instead of sagging into the shell.

   Before filling, beat the chilled custard briefly until smooth. It should hold soft ridges on the whisk, not run like sauce.
3. 3

   Prepare the tray

   Heat the oven to 200C, or 400F. Line two baking sheets with parchment and draw eight 11cm guides on the underside, spacing them well apart. Choux swells from inside, so crowded piping gives you joined shells and uneven baking. Fit a pastry bag with a 12 to 15mm open-star tip if you have one, or a plain round tip if you don't.

4. 4

   Boil the liquids

   In a heavy saucepan, combine the water, 120ml milk, 100g butter, 1 teaspoon sugar, and the remaining salt. Bring it to a full boil, not a shy simmer. The butter must be fully melted and the liquid must be hot enough to gelatinize the flour the moment it goes in.

5. 5

   Dry the dough

   Take the pan off the heat, add the sifted flour all at once, and stir hard until no dry flour remains. Return the pan to medium heat and cook, pressing and turning the dough with a wooden spoon or heatproof spatula, until it pulls cleanly from the sides and a thin film forms on the bottom, 90 seconds to 2 minutes. This is the step people rush. Dry it properly and the dough can take the eggs; leave it wet and the shells spread, then sulk flat on the tray.

   The dough should smell faintly nutty and look smooth, not greasy. If butter leaks out, the heat was too hard; keep stirring gently until it comes back together.
6. 6

   Add the eggs

   Move the dough to a bowl and let it cool for 3 minutes, so the eggs don't scramble on contact. Beat in the eggs a little at a time, mixing fully after each addition. Stop when the dough is glossy and falls from the spoon in a thick V-shaped ribbon, leaving a track that slowly fills in. You may not need the extra egg. Choux is judged by texture, not by obedience to a number.

7. 7

   Pipe the shells

   Pipe eight straight 11cm lengths, holding the bag low and steady so each shell is even from end to end. Smooth any pointed tails with a damp fingertip. If using an open-star tip, keep the ridges visible; they give the expanding dough little lines to open along, which helps the eclairs bake neatly instead of splitting wherever they please.

8. 8

   Bake until hollow

   Bake at 200C, or 400F, for 20 minutes without opening the oven door. Reduce the heat to 170C, or 340F, and bake 15 to 18 minutes more, until the shells are deep golden, firm, and light for their size. The hot oven sets the outer shell while the water inside becomes steam and inflates the pastry. Open the door too early and the pressure escapes before the structure is ready, which is how a good-looking eclair becomes a tired slipper.

   For extra insurance, pierce each shell near one end with a skewer after it is fully browned, then return it to the turned-off oven with the door cracked for 5 minutes. That lets trapped moisture leave and keeps the shell crisp longer.
9. 9

   Cool completely

   Transfer the shells to a wire rack and cool completely before filling. They should feel dry and sound faintly crisp when tapped. This is not fussiness. Warm choux melts the custard, and the trapped moisture softens the shell from the inside.

10. 10

    Make the fondant

    Warm the prepared fondant gently until fluid but not hot, about 35 to 38C if you use a thermometer. Stir in the melted dark chocolate and cocoa powder if using, then loosen with hot water a few drops at a time until it falls in a slow ribbon. Too thick and it tears the choux when dipped; too thin and it runs down the sides. A sensible stand-in is a powdered-sugar cocoa glaze, but fondant gives the clean bakery set.

11. 11

    Fill the shells

    Beat the chilled custard until smooth, then spoon it into a piping bag fitted with a small round tip. Make two or three small holes in the underside of each shell and pipe until the eclair feels gently heavy in your hand. Stop there. A split shell tells you only that you tried to make one pastry do the work of two.

12. 12

    Glaze and set

    Dip only the top of each filled eclair into the chocolate fondant, lift, and wipe the edge against the bowl so the line stays clean. Set the eclairs on a rack until the glaze loses its wet look and holds a soft satin finish. Serve the same day, slightly chilled or cool room temperature, with the cream fresh and the shell still distinct.

Chef Tips

• •This is not a sweet ruled by shun in the way bamboo shoots are, but freshness still decides it. Buy good whole milk, fresh eggs, and chocolate you like eating plain. The cream is exposed, not hidden.
• •Use the egg amount as a range. Dry flour, humid weather, and pan heat all change the dough. The ribbon test is more honest than the count of eggs.
• •A large open-star tip is useful for eclairs because the ridges guide expansion. A round tip works, but pipe steadily and leave space. The oven can forgive many things, but not crowding.
• •Fill close to serving when you can. A bakery case manages humidity better than a home refrigerator, and even a well-baked shell slowly softens once cream moves in.
• •Plate one eclair on a small dish, slightly diagonal, with space around it. More pastry piled on the plate does not make the table more generous. Leave it room.

Advance Preparation

• •The custard cream can be made up to 2 days ahead. Keep it refrigerated with wrap pressed directly on the surface, then beat it smooth before piping.
• •Unfilled choux shells can be baked 1 day ahead and kept airtight once fully cool. Refresh them in a 160C, or 320F, oven for 5 to 8 minutes, then cool again before filling.
• •Unfilled shells freeze well for 1 month. Re-crisp from frozen in a low oven, then cool completely.
• •Filled eclairs are best the day they are made. Keep them refrigerated and serve within 8 hours for the cleanest shell and cream.

Frequently Asked Questions

Nutrition Information

1 serving (about 165g)