Why it works: Grapefruit and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 118 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
Salad
Ingredients
Directions
Prepare the gelatin
Mix gelatine and sugar in a bowl, then dissolve in water.
Make the salad
Remove peelings from grapefruit and separate into small pieces, discarding all white skin.
Once gelatine is cool, add pineapple and grapefruit pieces.
Pour mixture into a wet mold and allow to set.
Serve
Serve on lettuce leaves with French dressing.
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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Grapefruit + lettucetop 1% of all pairsSmell alikestrongCooked together118 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Grapefruit + pineappletop 6% of all pairsSmell alikemoderateCooked together95 recipes
Shared aroma: ethyl isobutyrate (fruity, ethereal).
-
Pineapple + lettucetop 10% of all pairsSmell alikestrongCooked together271 recipes
Shared aroma: nonanal (fat, citrus).
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Sugar + pineappletop 19% of all pairsSmell alikelowCooked together4,841 recipes
Shared aroma: 2-nonenal (fatty, green).
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Grapefruit + sugartop 26% of all pairsSmell alikelowCooked together309 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Gelatine
- Sets the liquid into a firm, sliceable gel that holds the fruit in place.
- Grapefruit
- Provides the main citrus flavour and tartness that balances the sugar.
- Sugar or honey
- Sweetens the gelatin and adds body to the set mixture.
- Pineapple
- Adds sweet tropical flavour and small juicy pieces throughout the gel.
The step that matters
Let the gelatine cool before adding the fruit. Gelatine that is still hot can thin the mixture and stop it setting properly. Fresh pineapple contains enzymes that break down gelatine, so canned or cooked pineapple is the safer choice for a firm set.
Swap the pineapple
How well each one fits the dish's main ingredients (grapefruit, sugar, lettuce):
- Avocadofits better
- Limefits better
- Orangefits better
- Pineapplethe original
Fit is the average pairing score against grapefruit, sugar, lettuce. 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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