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Preserve

To Prepare Mustard

A homemade mustard condiment made by mixing mustard flour with boiling water, 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 ↓

To Prepare Mustard

Ingredients

Directions

  1. Gradually pour boiling water over the mustard flour until it reaches a proper thickness.

  2. Beat the mixture until perfectly smooth.

  3. Add a little salt and enough white sugar to taste.

  4. Keep the mustard closely covered.

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 + 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

Best flour of mustard
Provides the pungent body and flavour that the mustard is built on.
Boiling water
Hydrates the mustard flour so it thickens into a spreadable paste.
White sugar
Adds sweetness that balances the sharp heat of the mustard.

The step that matters

Gradually pour boiling water over the mustard flour. Adding the water slowly lets the flour hydrate evenly without lumps, so the mixture reaches the proper thickness and smoothness. Pouring it all at once can leave dry pockets that are hard to beat out.

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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