Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Rhubarb Jam
Ingredients
Directions
Prepare
Layer rhubarb, figs, orange peel, lemon juice, lemon rind, and sugar in a bowl. Repeat layers until all ingredients are used.
Cover and let stand overnight.
Cook and jar
In the morning, boil the mixture until thick, about 1 hour.
Pour into jelly glasses and let cool.
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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Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Rhubarb + orangetop 5% of all pairsSmell alikemoderateCooked together299 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
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Fig + orangetop 6% of all pairsSmell alikestrongCooked together407 recipes
Shared aroma: beta-damascenone (apple, rose).
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Rhubarb + figtop 6% of all pairsSmell alikestrongCooked together48 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
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Rhubarb + lemontop 7% of all pairsSmell alikestrongCooked together546 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Provides the tart flavour and bulk of the jam.
- Dried figs
- Add body and natural sweetness to the fruit mixture.
- Sugar
- Sweetens the jam and helps it thicken as it cooks down.
- Lemon juice
- Adds acidity that brightens the flavour and supports setting.
The step that matters
Boiling until thick. Rhubarb releases a lot of water, and the jam only sets once enough moisture evaporates and the sugar concentrates. Stopping too early leaves it runny, while overcooking can make it stiff and scorch on the bottom.
Swap the fig
How well each one fits the dish's main ingredients (rhubarb, orange, lemon, sugar):
- Limefits better
- Vanillafits better
- Blueberryfits about as well
- Figthe original
Fit is the average pairing score against rhubarb, orange, lemon, 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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