Why it works: Lettuce and lemon match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and cooks put them together in 1,559 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Fish Salad
Ingredients
Directions
Prepare
Flake the cooked fish and remove any bones and skin.
Make the dressing
Mash the yolks of the hard boiled eggs and the sardines into a smooth paste.
Mix the paste with the boiled or mayonnaise dressing.
Assemble and serve
Arrange the fish on lettuce leaves and pour the dressing over it.
Garnish with slices of lemon.
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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Lettuce + lemontop 9% of all pairsSmell alikestrongCooked together1,559 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Fish + lemontop 15% of all pairsSmell alikelowCooked together1,889 recipes
Shared aroma: 2-nonenal (fatty, green).
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Fish + lettucetop 18% of all pairsSmell alikelowCooked together196 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Fish + eggtop 22% of all pairsSmell alikemoderateCooked together2,782 recipes
Shared aroma: 2-nonenal (fatty, green).
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
- Their fat and emulsifying lecithin help bind the paste and give the dressing a smooth, rich body.
- Sardines
- Mashed into the paste, they add concentrated savoury flavour and oil that enriches the dressing.
- Boiled or mayonnaise dressing
- Its oil and egg content coat the flaked fish, adding moisture and richness.
The step that matters
Mashing the yolks and sardines into a smooth paste. If the paste is left lumpy, the dressing will not coat the flaked fish evenly. Mashing the yolks finely lets them blend into a uniform, creamy base.
Swap the lettuce
How well each one fits the dish's main ingredients (fish, egg, lemon):
- Asparagusfits better
- Spinachfits better
- Shallotfits better
- Lettucethe original
Fit is the average pairing score against fish, egg, lemon. 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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