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 ↓
A Nice Salad Dressing
Ingredients
Directions
Mash the hot egg yolks with the vinegar in a bowl.
Add the mustard, sugar, salt, and cream.
Mix until smooth and well combined.
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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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Mustard + sugartop 19% of all pairsSmell alikemoderateCooked together8,424 recipes
Shared aroma: guaiacol (smoky, sweet).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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 dressing, giving it a smooth, creamy body.
- Mustard
- Adds sharp flavour and helps stabilise the emulsion so the dressing does not separate.
- Vinegar
- Adds acidity that brightens the flavour and balances the richness of the yolks.
- Sugar
- Balances the sharpness of the vinegar and mustard with gentle sweetness.
- Cream
- Adds moisture and richness, loosening the dressing to a smooth, pourable texture.
The step that matters
Mix until smooth and well combined. Egg yolks and mustard must be fully blended with the other ingredients so the dressing forms a stable, even emulsion. Under-mixing leaves lumps and streaks, and the dressing can separate.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, cream, vinegar):
- Mustardthe original
- Cucumberfits about as well
- Capsicumfits about as well
- Horseradishfits about as well
Fit is the average pairing score against egg, sugar, 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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