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Preserve

To Preserve Blackberries

A method for preserving blackberries with sugar by cooking them until thickened and jarred.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 2 ingredients
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To Preserve Blackberries

Ingredients

Directions

Prepare

  1. Wash the blackberries thoroughly.

  2. Layer the blackberries in a pot with sugar, using equal parts of each.

  3. Let the mixture sit for a few hours to draw out the juices.

Cook and jar

  1. Cook over low heat until the blackberries are soft and the mixture thickens.

  2. Pour into sterilized jars and seal while hot.

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

What each ingredient does

Blackberries
Provide the fruit, pectin and natural acids that give the preserves body and flavour.
Sugar
Draws out juices from the fruit and helps the mixture thicken and keep.

The step that matters

Cook over low heat until thickened. Gentle heat softens the fruit and lets the juice reduce slowly, so the mixture thickens without scorching or caramelising the sugar too early.

“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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