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Mayonnaise Dressing

A cold, emulsified dressing made from egg yolks, oil, salt, lemon juice, and cayenne pepper.

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. Separate the egg yolks from the whites.

  2. Slowly stir oil into the yolks until they begin to thicken.

  3. Add salt and then lemon juice.

  4. Ensure all ingredients are very cold.

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. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  3. Egg + peppertop 33% of all pairs
    Smell alikelow
    Cooked together50,580 recipes

    Shared aroma: 2-nonenal (fatty, green).

Egg and lemon barely smell alike, yet cooks put them together in 44,316 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
Their lecithin emulsifies the oil and water, letting the oil disperse into a thick, stable sauce.
Oil
Provides the fat that gives the dressing its body, richness and smooth, creamy texture.
Lemon juice
Adds acidity that brightens the flavour and balances the richness of the oil.

The step that matters

Slowly stir oil into the yolks. Oil must be added a little at a time so the yolk emulsifier can surround the droplets. Adding it too fast causes the mixture to separate and fail to thicken.

“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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