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Sauce

Sharp Egg Sauce

A thickened egg yolk sauce seasoned with pepper and sea salt, finished with lemon juice or vinegar, served over fish.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 27,047 recipes mention both. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Sharp Egg Sauce

Ingredients

Directions

Make the sauce

  1. Mix the flour smoothly with the cold water.

  2. Pour the boiling water onto the flour mixture and stir over heat until thickened.

  3. Season with pepper and coarse sea salt.

  4. Add the beaten egg yolks and stir continuously over low heat for 5 minutes.

  5. Gradually stir in the lemon juice or French vinegar, ensuring the sauce does not boil after this addition.

Serve

  1. Serve over fish or in a sauce boat.

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 aroma chemistry they share, and how many recipes mention both.

  1. Pepper + lemontop 3% of all pairs
    Aroma overlapstrong
    Mentioned together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Flour + eggtop 15% of all pairs
    Aroma overlaplow
    Mentioned together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + lemontop 17% of all pairs
    Aroma overlapmoderate
    Mentioned together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + lemontop 19% of all pairs
    Aroma overlaplow
    Mentioned together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  5. Flour + peppertop 19% of all pairs
    Aroma overlapmoderate
    Mentioned together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and egg share little aroma chemistry, yet 106,462 recipes mention both: they likely 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

Egg yolks
Thicken the sauce as they set gently with heat and add richness.
Flour
Thickens the boiling water into a smooth, stable base for the sauce.
Lemon juice or french vinegar
Adds the sharp acidity that gives the sauce its character.

The step that matters

Adding the lemon juice or vinegar. Egg yolks curdle and turn grainy if they boil. Stirring in the acid gradually and keeping the sauce below boiling protects its smooth texture.

“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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