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Horseradish Sauce

A sauce made from horseradish, egg yolks, mustard, vinegar, salt, and sweet cream or oil.

From an old cookbook · modernised transcription
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Why it works: Horseradish and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Horseradish Sauce

Ingredients

Directions

  1. Mix the yolks of the hard-boiled eggs in a bowl with salt and dry mustard.

  2. Gradually stir in vinegar and then sweet cream (or oil if using).

  3. Add the prepared horseradish and mix well.

  4. 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. Horseradish + mustardtop 1% of all pairs
    Smell alikestrong
    Cooked together1,832 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Mustard + vinegartop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Horseradish + vinegartop 12% of all pairs
    Smell alikemoderate
    Cooked together2,609 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Horseradish + creamtop 18% of all pairs
    Smell alikemoderate
    Cooked together483 recipes

    Shared aroma: octanal (fat, soap).

  5. Egg + creamtop 24% of all pairs
    Smell alikelow
    Cooked together42,166 recipes

    Shared aroma: acetic acid (sour, vinegar).

Egg and cream barely smell alike, yet cooks put them together in 42,166 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
Yolks form a smooth, rich base that gives the sauce body.
Sweet cream
Adds fat and richness, softening the sharp bite of the horseradish.
Horseradish
Supplies the pungent heat and sharp flavour that defines the sauce.
Vinegar
Adds acidity that brightens the flavour and balances the richness.
Dry mustard
Adds a sharp, pungent note that complements the horseradish.

The step that matters

Serve immediately. Horseradish loses its pungency and sharp aroma as it sits, because the volatile compounds that give it heat dissipate and oxidise over time. Serving soon after mixing keeps the heat strong.

“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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