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Mustard Dressing

A boiled mustard dressing made with milk, vinegar, eggs, mustard, sugar, butter, flour, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Mustard Dressing

Ingredients

Directions

  1. Mix the flour and butter together in a bowl.

  2. Add the eggs, mustard, sugar, and salt to the mixture.

  3. Heat the milk and pour it over the mixture.

  4. Pour everything into the vinegar and bring to a boil.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Vinegar + mustardtop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Eggs
Thicken the dressing as they set and add richness.
Flour
Thickens the dressing by absorbing liquid and swelling when heated.
Butter
Adds fat and smooth body to the dressing.
Mustard
Adds sharp, pungent flavor that balances the sweetness.
Sugar
Adds sweetness that offsets the acidity of the vinegar.
Vinegar
Adds acidity that gives the dressing its tang.

The step that matters

Bring to a boil after adding the vinegar. Egg proteins set and can curdle or scramble if overheated, while flour needs enough heat to thicken. Stirring constantly while the mixture heats helps keep it smooth and evenly thickened.

Swap the mustard

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

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

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