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Chocolate Eclairs

Chocolate eclairs filled with whipped cream and coated in chocolate icing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Cream and chocolate are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 5,466 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Chocolate Eclairs

Oven, in the book's wordsA cool oven

Ingredients

Directions

The book says “a cool oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make and bake

  1. Prepare the Petits Choux mixture and place it in a piping bag with a plain tip.

  2. Pipe the mixture onto a baking sheet in finger lengths.

  3. Brush the tops with beaten egg and bake at 400°F (200°C) for 30 minutes.

Fill and finish

  1. Once cooled, split each éclair down one side.

  2. Fill with whipped cream, then dip each in chocolate icing.

  3. Allow the icing to set before serving in a pyramid on lace paper.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Cream + chocolatetop 11% of all pairs
    Smell alikemoderate
    Cooked together5,466 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  2. Egg + chocolatetop 24% of all pairs
    Smell alikemoderate
    Cooked together11,448 recipes

    Shared aroma: 2-heptenal (green).

  3. Egg + creamtop 24% of all pairs
    Smell alikelow
    Cooked together42,166 recipes

    Shared aroma: acetic acid (sour, vinegar).

Egg and cream barely smell alike, yet cooks put them together in 42,166 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Petits choux mixture
Forms the hollow, crisp shell that holds the cream filling.
Egg
Brushed on top to give the shells a glossy, browned finish.
Whipped cream
Adds a light, moist filling that contrasts with the crisp shell.
Chocolate icing
Forms a sweet, glossy coating that sets over the top of each éclair.

The step that matters

Bake until the shells are fully dry and crisp. Choux pastry relies on steam to puff and then needs to dry out to hold its hollow shape. If the shells are underbaked they can collapse or turn soggy once filled with cream.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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