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 ↓
Mayonnaise Dressing
Ingredients
Directions
Make the custard
Heat the butter, vinegar, and sugar in a saucepan.
Beat the egg yolks until very light.
Pour the hot vinegar mixture over the beaten egg yolks.
Cook the mixture in a double boiler until thickened.
Finish the dressing
Once done, add salt, red pepper, and mixed mustard to taste.
When cooled, mix in whipped cream if desired.
You can substitute olive oil for some of the butter if preferred.
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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Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken the mixture and emulsify the butter and vinegar into a smooth dressing.
- Butter
- Adds richness and body, giving the dressing a smooth, creamy mouthfeel.
- Vinegar
- Provides the sharp acidity that defines the dressing's flavour.
- Sugar
- Balances the acidity of the vinegar with a touch of sweetness.
- Mixed mustard
- Adds sharpness and aroma that complement the vinegar and richness of the yolks.
The step that matters
Cooking the custard over a double boiler. Egg yolks thicken as they heat, but if they get too hot they scramble into lumps. Gentle, indirect heat in a double boiler lets the mixture thicken smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (vinegar, butter, sugar, egg, pepper, cream, olive):
- Capsicumfits better
- Mustardthe original
- Spinachfits about as well
- Potatofits about as well
Fit is the average pairing score against vinegar, butter, sugar, egg, pepper, cream, olive. 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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