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To Make a Mustard-plaster

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

To Make a Mustard-plaster

Ingredients

Directions

  1. Mix 1 tablespoon of flour and 2 tablespoons of mustard with a little warm water to form a paste.

  2. For a stronger effect, omit the flour and mix mustard with vinegar or whisky.

  3. To use egg white, mix it with mustard for a plaster that won't blister.

  4. Spread the plaster on the skin and cover it with a piece of muslin to prevent direct contact.

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

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + mustardtop 13% of all pairs
    Smell alikemoderate
    Cooked together5,066 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + vinegartop 27% of all pairs
    Smell alikemoderate
    Cooked together8,652 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Mustard + eggtop 28% of all pairs
    Smell alikemoderate
    Cooked together9,210 recipes

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

Flour and egg barely smell alike, yet cooks put them together in 106,462 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

Swap the mustard

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

  1. Shallotfits better
  2. Cucumberfits about as well
  3. Chivefits about as well
  4. Mustardthe original

Fit is the average pairing score against flour, vinegar, egg. Candidates are from the same food group and used in at least 100 recipes.

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