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Salad

Mayonnaise Salad Dressing

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

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 Salad Dressing

Ingredients

Directions

  1. In a bowl, beat the yolks of two raw eggs until well combined.

  2. Season with cayenne pepper, coarse sea salt, and mustard to taste.

  3. Slowly add olive oil in a fine stream while stirring constantly until smooth and thick.

  4. Gradually add vinegar, stirring continuously until fully incorporated.

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. Pepper + mustardtop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  4. Olive + vinegartop 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 holds the oil and vinegar together as a smooth, thick sauce.
Olive oil
Supplies fat that, added slowly, forms the thick body of the dressing.
Vinegar
Adds acidity that brightens the flavour and helps balance the richness of the oil.
Mustard
Contains natural emulsifiers that help stabilise the mixture and add sharpness.

The step that matters

Slowly add olive oil in a fine stream. Yolks can only hold a limited amount of oil in emulsion. Adding oil too fast breaks the mixture into separate oil and egg, so the dressing stays thin or splits. Constant stirring lets each drop disperse before the next is added.

Swap the mustard

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

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

Fit is the average pairing score against egg, pepper, olive, 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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