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 ↓
Pine-apples
Ingredients
Directions
Prepare the syrup
Remove the top and bottom of the pineapple and peel the outside.
In a well-tinned saucepan, combine water, sugar, lemon slices, and pineapple peeling.
Boil for about 5 minutes, then strain the syrup.
Cook the preserve
Cut the pineapple into thin slices and add to the strained syrup in the saucepan.
Boil until the pineapple is easily pricked with a sharp skewer.
Store the preserve in jars.
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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Pineapple + lemontop 12% of all pairsSmell alikemoderateCooked together1,964 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
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
- Pineapple
- Provides the fruit that becomes tender and sets into the preserve.
- Loaf sugar
- Sweetens the syrup and helps preserve the fruit by drawing out moisture.
- Water
- Dissolves the sugar and forms the syrup the fruit cooks in.
- Lemon
- Adds acidity that brightens the flavour and supports setting.
The step that matters
Boil until the pineapple is easily pricked with a sharp skewer. Stopping too early leaves the fruit firm and the syrup thin, while overcooking toughens the fruit and can darken it. The skewer test shows when the fruit has softened through without breaking down.
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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