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Modern Cookery

A sauce made from cooked cucumbers, butter, salt, pepper, parsley, egg yolks, and optional flour.

From an old cookbook · modernised transcription
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Why it works: Cucumber and parsley match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,564 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓

Modern Cookery

Ingredients

Directions

  1. Cook the cucumbers in butter until tender.

  2. Add salt and white pepper to taste.

  3. Stir in finely-minced parsley.

  4. Thicken the sauce with the yolks of 2 or 3 eggs.

  5. Optionally, add flour after the vegetables have stewed in the butter.

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. Cucumber + parsleytop 7% of all pairs
    Smell alikestrong
    Cooked together1,564 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  2. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Parsley + flourtop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Cucumber + flourtop 13% of all pairs
    Smell alikemoderate
    Cooked together2,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. White pepper + parsleytop 14% of all pairs
    Smell alikelow
    Cooked together1,451 recipes

    Shared aroma: myrcene (balsamic, herbaceous).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Cucumbers
Form the main body of the sauce, softening into a tender vegetable base.
Egg yolks
Thicken the sauce and give it a rich, smooth body as they set with gentle heat.
Butter
Cooks the cucumbers and adds richness and a silky mouthfeel to the sauce.
Flour
Optional thickener that stabilises the sauce's body after the vegetables have stewed.

The step that matters

Thicken with egg yolks. Egg yolks thicken through gentle heat; if the sauce gets too hot, they can scramble and turn grainy. Keep the heat low and stir steadily once the yolks go in.

Swap the white pepper

How well each one fits the dish's main ingredients (cucumber, parsley, egg, butter, flour):

  1. Capersfits better
  2. Tarragonfits better
  3. Dillfits better
  4. White pepperthe original

Fit is the average pairing score against cucumber, parsley, egg, butter, flour. Candidates are from the same food group and used in at least 100 recipes.

“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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