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Horseradish Sauce

A vinegar-based sauce with horseradish, shallot, and cayenne.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Horseradish and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 376 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Horseradish Sauce

Ingredients

Directions

  1. Pour the vinegar over the scraped horseradish, minced shallot, and cayenne in a jar.

  2. Seal the jar and let it stand for a week to develop the flavors.

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 + shallottop 1% of all pairs
    Smell alikestrong
    Cooked together376 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Vinegar + shallottop 12% of all pairs
    Smell alikemoderate
    Cooked together2,374 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Vinegar + horseradishtop 12% of all pairs
    Smell alikemoderate
    Cooked together2,609 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Vinegar
Acidic base that sharpens the flavor and helps keep the sauce stable.
Horseradish
Supplies the sharp, pungent heat that defines the sauce.
Shallot
Adds a mild onion-like sweetness and aroma.
Cayenne
Adds a background heat that builds alongside the horseradish.

The step that matters

Let it stand for a week. Horseradish's sharp compounds are released when it is cut and then soften and blend with the vinegar over time. Sealing the jar and waiting lets the flavors mellow and meld, so tasting too early gives a harsher sauce than the finished one.

Swap the horseradish

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

  1. Mustardfits better
  2. Chivefits better
  3. Horseradishthe original
  4. Kalefits about as well

Fit is the average pairing score against vinegar, shallot. 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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