Why it works: Olive and lemon are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 11,922 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Salad Mayonnaise
Ingredients
Directions
In a large bowl, mix the egg yolk, mustard, salt, and Tabasco sauce with a wooden fork.
Slowly pour in the olive oil in a fine stream, alternating with the lemon juice, adding a little of each at a time.
Stir with long strokes, and if it's hot, place the bowl on a block of ice while stirring.
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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Olive + lemontop 7% of all pairsSmell alikemoderateCooked together11,922 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + lemontop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + saucetop 13% of all pairsSmell alikemoderateCooked together2,120 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 recipes: they work on texture and structure more than aroma.
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 lemon juice, giving the mayonnaise its thick, creamy structure.
- Olive oil
- Forms the bulk of the emulsion, providing richness and body as droplets are dispersed.
- Lemon juice
- Adds acidity that brightens the flavour and helps balance the richness of the oil.
- Ground mustard
- Acts as a secondary emulsifier that helps stabilise the mixture and adds sharpness.
The step that matters
Adding the oil slowly in a fine stream. Oil must be dispersed into tiny droplets among the egg yolk to form a stable emulsion. Pouring too fast, or adding too much at once, can overwhelm the yolk so the mayonnaise breaks and separates. Stirring steadily while adding helps keep it together.
Swap the lemon
How well each one fits the dish's main ingredients (egg, mustard, sauce, olive):
- Avocadofits better
- Lemonthe original
- Limefits about as well
- Coconutfits about as well
Fit is the average pairing score against egg, mustard, sauce, 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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