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Mustard the Common Wat

A thick mustard sauce made from mustard flour, salt, and boiling water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Mustard and flour 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 the Common Wat

Ingredients

Directions

  1. Mix mustard flour and salt in a bowl.

  2. Gradually add boiling water, stirring until smooth and thick like batter.

  3. Let it cool before transferring to a container.

  4. Optionally, mix in powdered sugar for sweetness.

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 + flourtop 13% of all pairs
    Smell alikemoderate
    Cooked together5,066 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Mustard flour
Supplies the sharp mustard flavour and the bulk that thickens into a paste when wet.
Boiling water
Hydrates the flour and sets the final thickness of the mustard.
Powdered sugar
Adds sweetness to balance the sharpness of the mustard.

The step that matters

Gradually add boiling water while stirring. Dry mustard flour clumps when a large amount of liquid hits it at once. Adding the water slowly and stirring lets each particle hydrate evenly, so the mixture becomes smooth rather than lumpy.

Swap the mustard

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

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

Fit is the average pairing score against flour, 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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