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Dessert

Jam, No. 1

A fruit preserve made by boiling fruit with sugar and water.

From an old cookbook · modernised transcription
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Jam, No. 1

Ingredients

Directions

Prepare

  1. Gather ripe, fresh fruit and ensure it is dry.

Make the jam

  1. In a preserving kettle, combine sugar and water.

  2. Boil the mixture until clear, skimming off any scum.

  3. Add the picked fruit and boil rapidly for 30 minutes.

Jar

  1. Pour the jam into jars and cover when cool.

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

Fruit
Supplies the flavor, color and most of the body of the jam.
Sugar
Sweetens the jam, helps it set into a gel and preserves it.

The step that matters

Boil rapidly for 30 minutes. Boiling evaporates water and concentrates the sugar and fruit pectin so the jam can set. Boiling too briefly leaves it runny, while boiling too long can darken it and dull its flavor.

“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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