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Egg Sauce

A sauce made from hard‑boiled eggs, butter, cream, lemon juice, and optional parsley.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Egg Sauce

Ingredients

Directions

Make the sauce

  1. Chop the hard boiled eggs finely using a silver knife or spoon.

  2. Prepare the butter sauce.

  3. Add the boiling cream or milk to the butter sauce.

  4. Stir in the chopped eggs.

  5. Add the lemon juice and parsley if desired.

Serve

  1. Serve immediately.

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. Lemon + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together14,037 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  3. Cream + saucetop 9% of all pairs
    Smell alikemoderate
    Cooked together4,787 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Butter + saucetop 15% of all pairs
    Smell alikelow
    Cooked together15,338 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

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

Butter and sauce barely smell alike, yet cooks put them together in 15,338 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

Hard boiled eggs
Chopped eggs provide the main body and texture of the sauce.
Cream or milk
Adds moisture and richness, loosening the butter sauce into a smooth sauce.
Butter sauce
Provides fat and a rich, smooth base that carries the egg.
Lemon juice
Adds acidity that brightens the rich butter and egg flavours.

The step that matters

Add the boiling cream or milk to the butter sauce. Hot liquid must be added gradually to the butter sauce so it blends smoothly rather than separating or turning grainy. Keeping the liquid hot helps the sauce stay fluid when the chopped eggs are stirred in.

Swap the parsley

The recipe marks parsley as optional. How well each one fits the dish's main ingredients (egg, cream, butter, sauce, lemon):

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

Fit is the average pairing score against egg, cream, butter, sauce, lemon. 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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