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Dessert

Boiled Dressing

A boiled dressing made with salt, mustard, sugar, cayenne pepper, flour, egg yolks, butter, milk, and vinegar.

From an old cookbook · modernised transcription
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Why it works: Butter and milk 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 dressing

  1. In a bowl, mix the salt, mustard, sugar, cayenne, and flour.

  2. Add the slightly beaten egg yolks, melted butter, milk, and vinegar slowly.

  3. Cook the mixture over boiling water until it begins to thicken.

Finish

  1. Strain the dressing and let it cool.

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. Butter + milktop 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. Mustard + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  4. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter 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

Egg yolks
Thicken the dressing as they set with gentle heat, and add richness.
Flour
Stabilises the mixture and helps it thicken smoothly without lumps.
Butter
Adds fat and a smooth, rich mouthfeel to the dressing.
Vinegar
Adds acidity that sharpens the flavour and balances the sweetness.
Sugar
Adds sweetness that balances the sharp vinegar.

The step that matters

Cook over boiling water until it begins to thicken. Egg yolks thicken as their proteins set with heat, but too much heat can scramble them. Gentle, indirect heat from boiling water and constant stirring keeps the dressing smooth.

Swap the mustard

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

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

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