Why it works: Olive and spinach match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,971 recipes. Both carry 2-undecenal, which smells sweet. The science ↓
Mayonnaise Sauce
Ingredients
Directions
Beat together the egg yolks, vinegar, salt, and pepper in a bowl.
Gradually add the olive oil while continuing to beat until a smooth cream forms.
Stir in the spinach juice for a green color.
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.
Photo for illustrative purposes only · Contact us to use it
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 + spinachtop 5% of all pairsSmell alikestrongCooked together2,971 recipes
Shared aroma: 2-undecenal (sweet).
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Pepper + spinachtop 6% of all pairsSmell alikemoderateCooked together3,400 recipes
Shared aroma: nonanal (fat, citrus).
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Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Pepper + olivetop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Act as the emulsifier, holding the oil and vinegar together in a smooth, thick cream.
- Olive oil
- Supplies the fat that gives mayonnaise its rich body and mouthfeel.
- Vinegar
- Adds sharp acidity for flavor and helps keep the emulsion stable.
The step that matters
Adding the olive oil gradually. Egg yolk lecithin can only surround so many oil droplets at once. Adding oil slowly lets each droplet be coated and dispersed, forming a stable emulsion. Pouring it in too fast can make the mixture break and separate into oily liquid.
Swap the spinach
The recipe marks spinach as optional. How well each one fits the dish's main ingredients (egg, vinegar, pepper, olive):
- Capsicumfits better
- Cucumberfits about as well
- Tomatofits about as well
- Spinachthe original
Fit is the average pairing score against egg, vinegar, pepper, 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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