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 ↓
Mayonnaise Dressing
Ingredients
Directions
In a bowl, mix the mustard and salt.
Add the egg yolks and mix well.
Gradually add the olive oil, starting with a few drops while stirring constantly.
As the mixture thickens, thin it with the vinegar and lemon juice.
Continue to add the oil and vinegar or lemon juice alternately until all is used, stirring constantly.
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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Lemon + olivetop 7% of all pairsSmell alikemoderateCooked together11,922 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Mustard + lemontop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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 and provide the body that holds it together.
- Olive oil
- Forms the fat phase that gives mayonnaise its rich texture when emulsified.
- Mustard
- Helps stabilize the emulsion so the oil and liquid stay blended.
- Lemon juice
- Adds acidity that brightens flavor and thins the mixture as it thickens.
- Vinegar
- Adds acidity that brightens flavor and thins the mixture as it thickens.
The step that matters
Adding the oil gradually. Oil must be added very slowly at first, while stirring constantly, so droplets are dispersed and surrounded by egg yolk lecithin. Adding too much oil at once can break the emulsion, leaving the mayonnaise oily and runny.
Swap the lemon
How well each one fits the dish's main ingredients (mustard, egg, vinegar, olive):
- Avocadofits better
- Lemonthe original
- Cherryfits about as well
- Limefits about as well
Fit is the average pairing score against mustard, egg, vinegar, 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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