Why it works: Rhubarb and ginger work together. They rank in the top 7% of all ingredient pairs, and cooks put them together in 241 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Rhubarb Jam with Ginger
Ingredients
Directions
Prepare
String the rhubarb and cut it into short lengths, then weigh it.
Place the rhubarb in a kettle and add just enough water to prevent burning.
Make the jam
Cook until the rhubarb is soft, then add one pound of sugar for each pound of rhubarb.
Stir well until the jam becomes rich and syrupy.
For each pound of rhubarb, mix about 1 teaspoon of ground ginger with a little water and add it to the jam.
Boil the jam again while stirring well, then pour it into glasses and cover once 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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Rhubarb + gingertop 7% of all pairsSmell alikemoderateCooked together241 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Sugar + gingertop 17% of all pairsSmell alikelowCooked together14,054 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
-
Rhubarb + sugartop 18% of all pairsSmell alikemoderateCooked together1,852 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Sugar and ginger barely smell alike, yet cooks put them together in 14,054 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
- Rhubarb
- Provides the tart flavour and the bulk of the jam, breaking down as it cooks.
- Sugar
- Sweetens the jam and, as it dissolves and concentrates, helps it thicken into a syrupy set.
- Ground ginger
- Adds warm, spicy aroma that complements the tart rhubarb.
The step that matters
Adding the sugar after the rhubarb is soft. Sugar added before the rhubarb has softened can toughen its fibres and slow breakdown. Once soft, the sugar dissolves easily and concentrates as the jam cooks, which lets it thicken and set.
Swap the rhubarb
How well each one fits the dish's main ingredients (sugar, ginger):
- Cinnamonfits better
- Turmericfits better
- Clovefits better
- Rhubarbthe original
Fit is the average pairing score against sugar, ginger. 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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