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 ↓
Cooked Salad Dressing
Ingredients
Directions
Make the dressing
Beat the egg yolks lightly.
Slowly add the oil while continuing to beat.
Mix in the salt and dry mustard.
Gradually add the vinegar.
Stir in the sugar and gradually beat in the milk.
Cook and finish
Cook over hot water until thick like cream.
Finally, add a dash of cayenne.
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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Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Sugar + milktop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Mustard + sugartop 19% of all pairsSmell alikemoderateCooked together8,424 recipes
Shared aroma: guaiacol (smoky, sweet).
Sugar and milk barely smell alike, yet cooks put them together in 77,875 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsify the oil and thicken the dressing when gently heated.
- Oil
- Adds fat and richness, forming an emulsion with the yolks.
- Vinegar
- Adds acidity that brightens the flavour and balances the richness.
- Milk
- Thins the mixture and adds moisture and a creamy body.
The step that matters
Cook over hot water until thick like cream. Egg yolks thicken as they heat, but overheating scrambles them into lumps. Gentle heat over hot water, rather than direct heat, keeps the dressing smooth and lets it thicken evenly.
Swap the mustard
How well each one fits the dish's main ingredients (egg, vinegar, sugar, milk):
- Capsicumfits better
- Mustardthe original
- Cucumberfits about as well
- Sweet potatofits about as well
Fit is the average pairing score against egg, vinegar, sugar, milk. 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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