Why it works: Vinegar and mustard 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 Cream
Ingredients
Directions
Boil the vinegar, water, butter, and mustard together in a saucepan.
Beat the egg yolks and mix them with the boiling liquid.
Stir the mixture back into the saucepan and heat until just below boiling.
Remove from heat immediately to prevent curdling.
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.
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Vinegar + mustardtop 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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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsify and thicken the sauce as they set gently with heat.
- Butter
- Adds richness and a smooth, silky mouthfeel to the sauce.
- Vinegar
- Provides sharp acidity that balances the richness of the yolks and butter.
- Prepared mustard
- Adds sharp flavour and helps stabilise the emulsion.
The step that matters
Heating the egg yolk mixture. Egg yolks thicken as their proteins set with gentle heat, but overheating scrambles them and causes curdling. Heat only until just below boiling and remove from the heat immediately to keep the sauce smooth.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, butter, egg, pepper):
- Capsicumfits better
- Mustardthe original
- Shallotfits about as well
- Cucumberfits about as well
Fit is the average pairing score against vinegar, butter, egg, 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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