Why it works: Apple and rhubarb work together. They rank in the top 9% of all ingredient pairs, and cooks put them together in 162 recipes. Both carry methyl cinnamate, which smells strawberry. The science ↓
Apple Jelly
Ingredients
Directions
Prepare the fruit
Wash and quarter the apples, removing the stalks and seeds.
Wash the rhubarb and cut it into pieces.
Combine the apples, rhubarb, and water in a preserving pan and boil gently for 15 minutes until the apples are mushy.
Extract the juice
Pour the mixture into a jelly bag and let it drain without pressure.
Measure the juice and add 1 lb of sugar for each pint of juice.
Cook and jar
Return the mixture to the preserving pan, bring to a boil, and stir frequently.
Boil for 15 minutes, then skim and pour into 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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Apple + rhubarbtop 9% of all pairsSmell alikemoderateCooked together162 recipes
Shared aroma: methyl cinnamate (strawberry).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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Rhubarb + sugartop 18% of all pairsSmell alikemoderateCooked together1,852 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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
- Apples
- Provide pectin and tart flavor that help the juice set into a jelly.
- Rhubarb
- Adds acidity and tartness that brightens the flavor of the jelly.
- Sugar
- Sweetens the jelly and helps it set by binding water and firming the gel.
The step that matters
Let the juice drain without pressure. Squeezing the jelly bag pushes cloudy solids through, which makes the jelly cloudy. Gentle draining keeps the juice clear.
Swap the rhubarb
How well each one fits the dish's main ingredients (apple, sugar):
- Cinnamonfits better
- Rhubarbthe original
- Gingerfits about as well
- Clovefits about as well
Fit is the average pairing score against 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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