Why it works: Pineapple and lemon are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 1,964 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Pineapple Jelly
Ingredients
Directions
Make the jelly base
Soak gelatine in ¼ cup cold water and dissolve it in the boiling water.
Add sugar and lemon juice, then strain the mixture.
Set and finish
When cool, set it on ice for 4 hours.
When it thickens, beat in the grated pineapple that has been previously brought to a boiling point.
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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Pineapple + lemontop 12% of all pairsSmell alikemoderateCooked together1,964 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pineapple + sugartop 19% of all pairsSmell alikelowCooked together4,841 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon 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
- Gelatine
- Forms the gel structure that lets the jelly set firm.
- Grated pineapple
- Adds fruit flavour and body to the jelly.
- Sugar
- Adds sweetness to balance the tartness of the lemon.
- Lemon juice
- Adds acidity that brightens the pineapple flavour.
The step that matters
Boil the pineapple before adding it. Fresh pineapple contains enzymes that break down gelatine, so the jelly may fail to set. Bringing the pineapple to a boil deactivates these enzymes, and beating it in only once the mixture has thickened keeps the gel intact.
Swap the pineapple
How well each one fits the dish's main ingredients (sugar, lemon):
- Orangefits better
- Limefits better
- Vanillafits better
- Pineapplethe original
Fit is the average pairing score against sugar, 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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