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Sauce

Egg Sauce, Miss Hattie Buck

A creamy sauce made from mashed hard‑boiled egg yolks, mustard, pepper, salt, vinegar, salad oil, and optional catsup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 14,067 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Egg Sauce, Miss Hattie Buck

Ingredients

Directions

  1. Mash the hard-boiled egg yolks in a bowl.

  2. Add mustard, pepper, salt, vinegar, and salad oil to the mashed yolks, then mix well until smooth.

  3. Stir in catsup if desired.

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. Mustard + vinegartop 7% of all pairs
    Aroma overlapmoderate
    Mentioned together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Mustard + peppertop 9% of all pairs
    Aroma overlapmoderate
    Mentioned together15,430 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Pepper + vinegartop 14% of all pairs
    Aroma overlapmoderate
    Mentioned together27,814 recipes

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

  4. Egg + mustardtop 28% of all pairs
    Aroma overlapmoderate
    Mentioned together9,210 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

  5. Egg + vinegartop 33% of all pairs
    Aroma overlaplow
    Mentioned together12,922 recipes

    Shared aroma: acetic acid (sour, vinegar).

Egg and vinegar share little aroma chemistry, yet 12,922 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

Hard-boiled egg yolks
Lecithin in the yolks helps bind the oil and vinegar into a smooth, creamy emulsion.
Mustard
Acts as a second emulsifier to stabilise the sauce and adds sharp flavour.
Vinegar
Provides acidity that gives the sauce its tang and balances the rich yolk and oil.
Salad oil
Supplies fat that gives the sauce its richness and smooth, pourable body.

The step that matters

Mixing until smooth. The yolk and mustard must bind the oil and vinegar into an even emulsion. If the sauce looks separated, greasy or grainy, it has not been mixed enough to hold together.

Flavor stand-ins for the mustard

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

  1. Capsicumbetter flavor fit
  2. Mustardthe original
  3. Cucumberabout as good a flavor fit

Fit is the average pairing score against egg, pepper, vinegar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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