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 Dreasiiig
Ingredients
Directions
Mix dry ingredients in a bowl.
Add egg yolk and stir until well mixed.
Add a few drops of vinegar, then gradually add oil drop by drop while stirring constantly.
As the mixture thickens, thin it with vinegar until all is used, then add lemon juice.
Continue adding oil alternately with vinegar or lemon juice until all is used, stirring vigorously.
Once thickened, add oil in a slow, steady stream while continuing to beat.
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).
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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 yolk
- Emulsifies the oil and water, holding the dressing together as a smooth, thick emulsion.
- Olive oil
- Forms the body of the dressing, giving richness and a thick, creamy texture when emulsified.
- Vinegar
- Adds acidity that brightens flavor and helps thin and stabilize the emulsion.
- Lemon juice
- Adds acidity and fresh flavor while thinning the emulsion.
- Mustard
- Helps stabilize the emulsion and adds sharp flavor.
The step that matters
Adding the oil. Oil must be added slowly while beating so droplets disperse and the egg yolk can coat them. Adding it too fast breaks the emulsion, leaving the dressing oily and separated.
Swap the lemon
How well each one fits the dish's main ingredients (mustard, egg, sugar, vinegar, olive):
- Lemonthe original
- Avocadofits about as well
- Cherryfits about as well
- Figfits less well
Fit is the average pairing score against mustard, egg, sugar, 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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