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Dessert

Jellies and Jams

A simple recipe for fruit jellies and jams using fruit juice, sugar, and optional plums for marmalade.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Sugar and plum are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 2,313 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓

Jellies and Jams

Ingredients

Directions

Prepare the juice

  1. Strain the fruit juice through a fine cloth without squeezing.

Make the jelly

  1. Combine equal parts of juice and sugar in a pot.

  2. Boil for 8 to 10 minutes.

  3. To test, drop a spoonful on a saucer and cool; if it holds its shape, it's done.

Make the marmalade

  1. Press leftover plums through a sieve.

  2. Combine the pressed plums with equal parts sugar.

  3. Boil the mixture for 30 minutes.

  4. Add sugar and boil for another 10 to 15 minutes.

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. Sugar + plumtop 21% of all pairs
    Smell alikelow
    Cooked together2,313 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

Fruit juice
Provides the liquid and flavour base that sets into a jelly with sugar.
Sugar
Sweetens and, with boiling, helps the mixture thicken and set.
Plums
Optional fruit for the marmalade, adding flavour and body once pressed.

The step that matters

Testing for doneness. Fruit jelly sets as it cools because pectin and sugar form a gel at the right concentration. Undercooked mixtures stay runny, while overcooking can make the set firm or tough. The saucer test shows whether the gel forms.

“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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