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 ↓
Salad Dressing.
Ingredients
Directions
Prepare the eggs
Boil the eggs until hard, about 20 minutes.
Place them in cold water, then remove the shells.
Make the dressing
Pound the yolks in a mortar to a smooth paste.
Add the mustard, white pepper, cayenne, salt, and cream; stir until well combined.
Gradually add vinegar until the mixture reaches a creamy consistency.
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.
Photo for illustrative purposes only · Contact us to use it
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.
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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White pepper + peppertop 19% of all pairsSmell alikelowCooked together1,478 recipes
Shared aroma: piperonal (bitter, coconut).
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White pepper + vinegartop 20% of all pairsSmell alikelowCooked together1,154 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Cooked yolks form a smooth paste that gives the dressing its body and richness.
- Cream
- Adds fat and moisture, softening the dressing into a creamy texture.
- Mixed mustard
- Adds sharp flavour and helps emulsify the dressing.
- Vinegar
- Adds acidity that brightens the dressing and thins it to a creamy consistency.
The step that matters
Pounding the yolks to a smooth paste. If the yolks are left lumpy, they will not blend evenly with the cream and mustard, so the dressing turns grainy. Working them until smooth first gives an even base for the rest of the ingredients.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, mustard, pepper, cream, vinegar):
- Tarragonfits better
- Capersfits better
- Dillfits better
- White pepperthe original
Fit is the average pairing score against egg, mustard, pepper, cream, 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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