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 Dressing, No. 1
Ingredients
Directions
Mix the salt, pepper, sugar, and mustard with the oil.
Slowly add the vinegar while stirring continuously.
If desired, add a little tarragon vinegar.
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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Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Mustard + sugartop 19% of all pairsSmell alikemoderateCooked together8,424 recipes
Shared aroma: guaiacol (smoky, sweet).
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Vinegar + white peppertop 20% of all pairsSmell alikelowCooked together1,154 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + white peppertop 25% of all pairsSmell alikelowCooked together618 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salad oil
- Forms the continuous fat base that gives the dressing its body and mouthfeel.
- Vinegar
- Adds acidity and sharpness that balances the richness of the oil.
- Mustard
- Helps the oil and vinegar stay combined as an emulsion instead of separating.
The step that matters
Slowly add the vinegar while stirring continuously. Mustard helps bind oil and vinegar into an emulsion. Adding the vinegar slowly while stirring breaks it into fine droplets, so the dressing stays combined rather than separating into layers.
Swap the white pepper
How well each one fits the dish's main ingredients (vinegar, mustard, sugar):
- Tarragonfits better
- Capersfits better
- Allspicefits better
- White pepperthe original
Fit is the average pairing score against vinegar, mustard, sugar. 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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