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Quince Marmalade

A preserve made from quinces, sugar, orange juice, and water, cooked until thick.

From an old cookbook · modernised transcription
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Why it works: Quince and orange work together. They rank in the top 9% of all ingredient pairs, and cooks put them together in 152 recipes. Both carry ethyl isobutyrate, which smells fruity, ethereal. The science ↓

Quince Marmalade

Ingredients

Directions

Prepare the fruit

  1. Wash and peel the quinces, cut them into quarters, and remove the seeds.

  2. Weigh the fruit and soak it in cold water until ready to use.

  3. Cook the skins and cores in just enough water to cover until soft.

  4. Strain the water into a preserving kettle and add the quinces.

Cook the marmalade

  1. Boil for 20 minutes, then add 1½ cups of sugar and the juice of ½ orange for each pound of fruit.

  2. Boil slowly for 1 hour or until thick, stirring occasionally to prevent burning.

  3. Pour into jars or jelly glasses.

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. Quince + orangetop 9% of all pairs
    Smell alikemoderate
    Cooked together152 recipes

    Shared aroma: ethyl isobutyrate (fruity, ethereal).

  2. Sugar + orangetop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

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

  3. Quince + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together1,444 recipes

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

Sugar and orange 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

Quinces
Provide the fruit body and natural pectin that help the marmalade set and thicken.
Sugar
Sweetens the marmalade and, as it concentrates, helps it thicken and preserve.
Juice of ½ orange
Adds acidity and brightness that balance the sweetness and support setting.

The step that matters

Boil slowly and stir until thick. Sugar-rich fruit can scorch on the bottom of the kettle before it thickens. Stirring occasionally spreads the heat and prevents burning, while the long gentle boil lets water evaporate so the pectin and sugar can set the marmalade.

Swap the quince

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

  1. Vanillafits better
  2. Lemonfits better
  3. Figfits better
  4. Quincethe original

Fit is the average pairing score against sugar, orange. 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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