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Sauce

Boiled Dressing

A white sauce made by boiling milk, thickened with flour, butter, mustard, vinegar, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Boiled Dressing

Ingredients

Directions

Make the sauce

  1. Heat the milk in a saucepan until it reaches a boiling point.

  2. In a small bowl, blend the flour with a little cold milk until smooth.

  3. Add the flour mixture, salt, and butter to the boiling milk.

  4. Continue to boil the mixture until it thickens, stirring constantly to prevent burning.

Cool and finish

  1. Remove from heat and let it cool completely.

  2. Just before serving, mix the mustard and vinegar, then add to the cooled white sauce.

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. Mustard + vinegartop 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. Flour + mustardtop 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

Milk
Forms the liquid base of the sauce that thickens when heated.
Flour
Thickens the milk as its starch swells when boiled, giving the dressing body.
Butter
Adds richness and smooth mouthfeel to the sauce.
English mustard
Adds sharp, pungent flavour that cuts the richness of the sauce.
Vinegar
Adds acidity that brightens the flavour of the dressing.

The step that matters

Stirring while the sauce boils. Flour thickens only when its starch swells in boiling liquid, and the mixture can scorch on the base of the pan if not stirred constantly, so keep it moving until thick.

Swap the mustard

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

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

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