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Dessert

Raspberry Preserves

A sweet preserve made by layering raspberries and sugar, then adding currant juice and boiling until clear.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Sugar and currant are a kitchen classic. They rank in the top 26% of all ingredient pairs, and cooks put them together in 12,256 recipes. The science ↓

Raspberry Preserves

Ingredients

Directions

Prepare

  1. Inspect the raspberries for insects and weigh them.

  2. Layer sugar in the bottom of a preserving kettle, then alternate layers of raspberries and sugar, finishing with sugar on top.

  3. Let the fruit sit in the sugar overnight.

  4. The next day, stem and crush the currants, then strain their juice.

Cook

  1. For every 2 pounds of fruit and sugar, add ½ pint of currant juice to the kettle.

  2. Heat the mixture over the fire, stirring until it boils.

  3. Remove any scum that rises and stir gently to prevent sticking.

  4. Boil until the preserves look clear, then cool and store in a cool, dark place.

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 + curranttop 26% of all pairs
    Smell alikelow
    Cooked together12,256 recipes

Sugar and currant barely smell alike, yet cooks put them together in 12,256 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

Raspberries
Provide the main fruit flavor, bulk, and structure of the preserves.
Sugar
Sweetens the fruit and draws out moisture, and its concentration helps the preserves set.
Currant juice
Adds acidity and natural pectin, helping the preserves set and balancing sweetness.

The step that matters

Boil until the preserves look clear. Under-boiling leaves too much water, so the preserves may not set, while over-boiling can darken the fruit and make the flavor harsh. Sugar concentration and pectin together determine the set, so the cook must judge the point carefully.

“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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