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Sauce

Egg Sauce

A sauce made with butter, flour, water, salt, pepper, parsley, and hard‑boiled egg cubes.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Egg Sauce

Ingredients

Directions

  1. In a saucepan, mix the butter and flour together.

  2. Stir in the water and season with salt, pepper, and chopped parsley.

  3. Boil the mixture until it thickens.

  4. Remove from heat and stir in the hard-boiled eggs.

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. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + parsleytop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + parsleytop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

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

  5. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

Butter
Fat that carries flavour and gives the sauce a rich mouthfeel.
Flour
Starch that thickens the butter and water into a smooth sauce.
Hard-boiled eggs
Adds richness and soft body to the sauce.

The step that matters

Boil until thickened. Flour starch swells and thickens only once the liquid reaches a boil, so stopping early leaves the sauce thin. Stirring keeps the flour from clumping as it thickens.

Swap the parsley

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

  1. Parsleythe original
  2. Nutmegfits about as well
  3. Capersfits less well
  4. Tarragonfits less well

Fit is the average pairing score against butter, flour, pepper, egg. 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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