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 ↓
Lettuce
Ingredients
Directions
Prepare the lettuce
Wash each lettuce leaf separately and place in cold water.
Set the lettuce on ice or in a cool cellar for at least 1 hour.
Dry the leaves with a soft towel and tear into pieces with a silver fork.
Make the dressing
For dressing, mix equal parts lemon juice and sugar, diluted with a little ice water.
Alternatively, mix 3-4 tablespoons of thin cream with 1 teaspoon of sugar.
If desired, add a little lemon juice to the cream dressing to thicken it slightly.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lettuce + creamtop 26% of all pairsSmell alikemoderateCooked together1,121 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Lettuce + sugartop 29% of all pairsSmell alikemoderateCooked together1,486 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
- Lettuce leaves
- Make up the salad itself; cold water and chilling keep the leaves crisp and firm.
- Lemon juice
- Adds acidity that brightens the dressing and balances the sugar.
- Sugar
- Adds sweetness that softens the sharpness of the lemon juice or cream.
- Thin cream
- Adds fat and richness, giving the cream dressing a smooth, coating texture.
The step that matters
Dry the leaves and tear them gently. Water left on the leaves dilutes the dressing so it slides off instead of clinging. Cut or bruised edges brown quickly, so tearing by hand with a fork and drying carefully keeps the salad fresh-looking.
Swap the lettuce
How well each one fits the dish's main ingredients (lemon, sugar, cream):
- Arrowrootfits better
- Leekfits better
- Spinachfits better
- Lettucethe original
Fit is the average pairing score against lemon, sugar, cream. 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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