Why it works: Plum and pear match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 245 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Marmalade From Mixicd Fruits
Ingredients
Directions
Prepare the fruit
Pare, core, and remove the pits from the fruits.
Stew the fruits together until perfectly tender, using as little water as possible.
Cook slowly in an earthen or porcelain kettle.
Rub the cooked fruit through a sieve.
Make the marmalade
Add ½ pound of sugar for every pound of pulp.
Boil steadily until quite stiff, stirring to prevent scorching.
Remove from heat and let cool slightly until it hardens partially.
Shape and serve
Cut into diamond shapes, 1 to 2 inches long, and set aside for dessert.
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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Plum + peartop 1% of all pairsSmell alikestrongCooked together245 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pear + appletop 1% of all pairsSmell alikestrongCooked together649 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Plum + appletop 2% of all pairsSmell alikestrongCooked together404 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pear + sugartop 17% of all pairsSmell alikelowCooked together2,079 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Apple and sugar barely smell alike, yet cooks put them together in 16,478 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
- Plums
- Add fruit body, tartness and pectin-rich pulp that helps the marmalade set.
- Pears
- Contribute mild sweetness and a soft pulp that thickens the mixture as it cooks.
- Apples
- Supply natural pectin and body, helping the marmalade become firm when cooled.
- Cherries
- Add tart flavor and color to the pulp.
- Sugar
- Sweetens the fruit and, with boiling, helps the pulp thicken and set into a stiff mass.
The step that matters
Boil steadily until quite stiff, stirring to prevent scorching. Sugar and fruit pectin set only at high concentration, so the mixture must cook long enough to thicken. Constant stirring prevents sugars from scorching on the bottom of the kettle.
Swap the plum
How well each one fits the dish's main ingredients (pear, apple, sugar):
- Plumthe original
- Apricotfits about as well
- Vanillafits about as well
- Quincefits about as well
Fit is the average pairing score against pear, apple, sugar. 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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