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Mayonnaise Dressing

A creamy dressing made with mustard, sugar, salt, cayenne pepper, egg yolks, vinegar, and olive oil.

From an old cookbook · modernised transcription
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Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Mayonnaise Dressing

Ingredients

Directions

  1. In a bowl, combine mustard, sugar, salt, and cayenne pepper.

  2. Add the egg yolks and beat well.

  3. Stir in the strong vinegar.

  4. Slowly add the olive oil drop by drop as the mixture thickens.

  5. Once thickened, add the additional vinegar.

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 + vinegartop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Mustard + olivetop 8% of all pairs
    Smell alikestrong
    Cooked together5,950 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

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

  4. Vinegar + olivetop 10% of all pairs
    Smell alikemoderate
    Cooked together12,297 recipes

    Shared aroma: isoamyl acetate (banana, fruity).

  5. Pepper + olivetop 11% of all pairs
    Smell alikemoderate
    Cooked together30,263 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

What each ingredient does

Egg yolks
Emulsifier that binds the oil and vinegar into a thick, stable dressing.
Olive oil
Supplies fat that gives the dressing its rich body and smooth texture.
Vinegar
Adds acidity that balances the richness and helps the emulsion set.
Mustard
Helps stabilise the emulsion and adds sharpness.

The step that matters

Adding the olive oil slowly. Oil must be added drop by drop so the egg yolk can disperse it into tiny droplets. Adding it too fast breaks the emulsion, and the dressing stays runny or separates.

Swap the mustard

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

  1. Capsicumfits better
  2. Mustardthe original
  3. Cucumberfits about as well
  4. Tomatofits less well

Fit is the average pairing score against sugar, pepper, egg, vinegar, olive. 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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