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Mayonnaise Dressing

A creamy dressing made from egg yolk, mustard, lemon juice, vinegar, salt, pepper, and oil.

From an old cookbook · modernised transcription
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Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Mayonnaise Dressing

Ingredients

Directions

  1. Beat the egg yolk in a bowl.

  2. Dissolve the mustard in the lemon juice and add it to the yolk.

  3. Stir in the vinegar, salt, and pepper.

  4. Gradually pour in the oil while whisking until you reach the desired consistency.

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. Lemon + peppertop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  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. Mustard + lemontop 11% of all pairs
    Smell alikestrong
    Cooked together3,816 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Vinegar + peppertop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

What each ingredient does

Egg yolk
Lecithin in the yolk emulsifies the oil and water, creating a stable, thick dressing.
Oil
Forms the bulk of the dressing, giving it richness and a smooth, creamy texture.
Mustard
Its compounds help stabilise the emulsion so the oil stays suspended in the dressing.
Lemon juice
Adds acidity that brightens the flavour and balances the richness of the oil.

The step that matters

Gradually pour in the oil while whisking. Adding oil slowly lets each droplet be coated and dispersed by the yolk before more is added. Pouring too fast can break the emulsion, leaving the dressing oily and runny.

Swap the mustard

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

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

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