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 ↓
Sana Mayonnaise—salad for Slaw
Ingredients
Directions
In a bowl, combine the raw egg yolks and mustard if using.
Slowly stir in the oil, a drop at a time, until the mixture begins to thicken.
Once thickened, pour in the oil in a steady stream while stirring continuously.
Add cayenne pepper, salt, and vinegar to taste.
The mayonnaise should be nearly as thick as soft butter.
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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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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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).
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 into the mixture, giving the mayonnaise its thick, creamy structure.
- Oil
- Forms the bulk of the emulsion, providing richness and body as droplets are dispersed in the yolk.
- Mustard
- Helps stabilise the emulsion so the oil stays suspended instead of separating.
- Vinegar
- Adds acidity that brightens the flavour and balances the richness of the oil.
The step that matters
Adding the oil slowly at first. Oil must be dispersed into the yolks in small amounts so that tiny droplets form a stable emulsion. Adding it too fast can cause the mixture to break and separate into a greasy, runny liquid.
Swap the mustard
The recipe marks mustard as optional. How well each one fits the dish's main ingredients (egg, pepper, vinegar, sugar):
- Capsicumfits better
- Mustardthe original
- Cucumberfits less well
- Cabbagefits less well
Fit is the average pairing score against egg, pepper, vinegar, 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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