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 ↓
Boiled Dressing, No. 1
Ingredients
Directions
Mix salt, mustard, and sugar in a bowl.
Add the beaten egg yolks, melted butter, cream, and vinegar.
Cook over boiling water until thick.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken the dressing as they cook and set, giving it a smooth, creamy body.
- Butter
- Adds richness and a silky mouthfeel to the dressing.
- Vinegar
- Adds acidity that sharpens the flavor and balances the sweetness.
- Sugar
- Adds sweetness that balances the sharpness of the vinegar and mustard.
- Mustard
- Adds sharp, pungent flavor and helps emulsify the dressing.
The step that matters
Cook over boiling water until thick. Egg yolks thicken as their proteins set with gentle heat. If the heat is too high or cooking goes on too long, the yolks can scramble and curdle, so the dressing should be stirred and cooked gently over simmering, not boiling, water.
Swap the mustard
How well each one fits the dish's main ingredients (sugar, egg, butter, cream, vinegar):
- Mustardthe original
- Capsicumfits about as well
- Chivefits about as well
- Cucumberfits about as well
Fit is the average pairing score against sugar, egg, butter, 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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