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 ↓
Remoulade Dressing
Ingredients
Directions
Prepare the yolks
Remove the shells from the hard boiled eggs and set the whites aside for garnish.
Mash the yolks until smooth, then add the mustard, salt, cayenne, and half of the vinegar. Mix thoroughly.
Make the sauce
Slowly add the olive oil, drop by drop, while beating the mixture continuously.
Once well combined, add the raw egg yolk and mix until fully incorporated.
Finally, add the remaining vinegar and adjust the oil and vinegar to taste.
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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Olive + mustardtop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Olive + peppertop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Raw egg yolk
- Its lecithin helps emulsify the oil and vinegar into a stable, creamy sauce.
- Hard boiled eggs
- Mashed yolks add body and richness, thickening the sauce.
- Olive oil
- Provides fat that, emulsified, gives the sauce its smooth, rich texture.
- Vinegar
- Adds acidity that brightens the sauce and balances the richness of the oil.
- Prepared mustard
- Its natural emulsifiers help hold the oil and egg mixture together.
The step that matters
Adding the oil drop by drop while beating. Oil must be dispersed slowly into the egg mixture so the emulsion forms; adding it too fast causes it to split and turn greasy and separated.
Swap the mustard
How well each one fits the dish's main ingredients (egg, vinegar, olive, pepper):
- Capsicumfits better
- Cucumberfits about as well
- Tomatofits about as well
- Mustardthe original
Fit is the average pairing score against egg, vinegar, olive, pepper. 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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