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 ↓
Plain Salad Dressing I
Ingredients
Directions
Mash the hard-boiled egg yolk in a bowl.
Mix in the mustard, salt, and sugar until smooth.
Add the olive oil gradually while stirring.
Stir in the cream until well combined.
Finally, mix in the vinegar gradually.
Do not pour the dressing over the salad until just ready to serve.
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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Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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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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Olive + vinegartop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolk
- Emulsifies the oil and cream, giving the dressing a smooth, thick body.
- Mustard
- Helps hold the oil and vinegar together and adds a sharp flavour.
- Olive oil
- Provides fat for richness and a smooth mouthfeel.
- Cream
- Adds moisture and body, mellowing the sharpness of the vinegar.
- Vinegar
- Adds acidity that balances the sweetness and richness.
The step that matters
Adding the oil and vinegar gradually. Adding oil or vinegar too quickly can break the emulsion, so the dressing separates instead of turning smooth and creamy. Slow addition while stirring lets the egg yolk and mustard bind the liquids into a stable mixture.
Swap the mustard
How well each one fits the dish's main ingredients (egg, sugar, olive, cream, vinegar):
- Capsicumfits about as well
- Mustardthe original
- Cucumberfits about as well
- Asparagusfits less well
Fit is the average pairing score against egg, sugar, olive, 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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