Why it works: Lemon and olive 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 ↓
Mayonnaise Dressing
Ingredients
Directions
Prepare
Chill the egg yolks, olive oil, and the plate you'll use.
In a bowl, mix the egg yolks with white pepper and salt.
Add the mustard and mix thoroughly.
Emulsify
Slowly add the olive oil drop by drop while stirring in the same direction.
If the mixture begins to crack, add vinegar while stirring.
If it curdles, continue adding oil to maintain a creamy consistency.
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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Lemon + olivetop 7% of all pairsSmell alikemoderateCooked together11,922 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Olive + mustardtop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Lemon + mustardtop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Lemon + white peppertop 16% of all pairsSmell alikelowCooked together1,658 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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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 yolks
- Lecithin in the yolk emulsifies the oil and water, holding the sauce together as a stable mixture.
- Olive oil
- Forms the bulk of the sauce, giving it richness, body and its characteristic fat-based texture.
- Lemon juice or vinegar
- Adds acidity that brightens the flavour and helps stabilise the emulsion when it begins to break.
- Prepared mustard
- Its natural emulsifiers help bind the oil and yolk and add a sharp, savoury flavour.
The step that matters
Adding the oil slowly. Oil must be dispersed into tiny droplets before the yolk can coat them. Adding it too fast overwhelms the emulsifier, so the mixture breaks and curdles.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, lemon, olive, mustard):
- Capersfits better
- Tarragonfits better
- Dillfits better
- White pepperthe original
Fit is the average pairing score against egg, lemon, olive, mustard. 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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