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Sauce

Mustard in a Minute

A quick mustard sauce made by mixing flour of mustard with milk, salt, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Flour and mustard are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 5,066 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Mustard in a Minute

Ingredients

Directions

  1. In a mortar, gradually mix the flour of mustard with the milk.

  2. Add the salt and sugar, and rub together until smooth.

  3. Serve immediately as it is not bitter.

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

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Mustard + sugartop 19% of all pairs
    Smell alikemoderate
    Cooked together8,424 recipes

    Shared aroma: guaiacol (smoky, sweet).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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

Flour of mustard
Supplies the sharp, pungent mustard flavour that defines the sauce.
Milk
Adds liquid that carries the mustard and makes a smooth, spoonable sauce.
Sugar
Softens the sharpness of the mustard, giving a more rounded flavour.

The step that matters

Serve immediately. Mustard's pungent compounds form when the ground seed meets liquid and change quickly afterwards. Serving soon after mixing keeps the flavour bright and prevents the sauce from turning harsh or bitter as it stands.

Swap the mustard

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

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Beetrootfits better
  4. Mustardthe original

Fit is the average pairing score against flour, milk, sugar. 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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