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Dessert

Rhubarb and Orange Jam

A jam made from rhubarb, oranges, and sugar, simmered until thickened.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Rhubarb and orange work together. They rank in the top 5% of all ingredient pairs, and cooks put them together in 299 recipes. Both carry 2-methoxy-4-vinylphenol, which smells clove, smoky. The science ↓

Rhubarb and Orange Jam

Ingredients

Directions

Prepare the fruit

  1. Peel the oranges and cut half the rind into thin strips.

  2. Remove the white pith from the oranges and slice them, discarding the seeds.

Cook the jam

  1. In a preserving pan, combine the chopped rhubarb, sliced oranges, and sugar.

  2. Boil the mixture over medium heat until it thickens and a small amount sets on a plate.

  3. Skim off any scum that rises and stir the fruit to prevent burning.

Jar

  1. Pour the jam into jars and cover once cooled.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Rhubarb + orangetop 5% of all pairs
    Smell alikemoderate
    Cooked together299 recipes

    Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).

  2. Rhubarb + sugartop 18% of all pairs
    Smell alikemoderate
    Cooked together1,852 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  3. Orange + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

Orange and sugar barely smell alike, yet cooks put them together in 19,212 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 tart flavour and bulk, and breaks down into the body of the jam.
Oranges
Add aromatic citrus flavour and natural pectin from the pith and seeds to help the jam set.
Loaf sugar
Sweetens the jam and, as it dissolves and concentrates, helps it thicken and set.

The step that matters

Boiling until the jam sets. Jam thickens as water evaporates and sugar and pectin reach a gel point. Undercooking leaves it runny, while overcooking can make it stiff or caramelised. Testing a cold plate shows when it is ready.

Swap the orange

How well each one fits the dish's main ingredients (rhubarb, sugar):

  1. Vanillafits better
  2. Figfits about as well
  3. Quincefits about as well
  4. Orangethe original

Fit is the average pairing score against rhubarb, 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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