Why it works: Rhubarb and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 1,852 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓
Canned Rhubarb
Ingredients
Directions
Prepare
Wash and drain the rhubarb.
Layer the rhubarb and brown sugar in self-sealing jars, filling them as full as possible.
Screw the covers on tightly.
Boil and seal
Place the jars in a boiler of cold water up to the neck.
Boil steadily for 2 to 3 hours until the rhubarb is cooked and has reduced by one-third.
Remove the jars from the boiler.
Use the contents of 2 to 3 jars to fill up the others.
Replace the covers immediately and screw the covers tight.
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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Rhubarb + sugartop 18% of all pairsSmell alikemoderateCooked together1,852 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Forms the bulk of the preserve and softens into a tart, fruity mass as it cooks.
- Light brown sugar
- Sweetens the rhubarb and helps draw out its juice, giving a syrupy, soft set.
The step that matters
Boil steadily for 2 to 3 hours. The rhubarb must cook through and reduce by about one-third to thicken and keep well. Too little heat or time leaves it watery and under-cooked, so the jars may not seal reliably.
“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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