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Dessert

Clear Jam

A jam made by clarifying sugar with fruit over a slow fire.

From an old cookbook · modernised transcription
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Clear Jam

Oven, in the book's wordsA moderate oven

Ingredients

Directions

Prepare

  1. Break sugar into large pieces and dip in water.

Make the jam

  1. Add sugar to fruit over a slow fire.

  2. Do not let it boil and skim well.

  3. If sugar is clarified, it will improve the jam.

Store

  1. Put jam into small pots for best preservation.

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

Sugar
Sweetens the jam and helps it set by binding water, giving body to the fruit.
Fruit
Provides the main flavour and the pectin and acid that help the jam gel.

The step that matters

Do not let it boil. A slow fire keeps the jam at a gentle simmer. Boiling hard can darken the sugar, cloud the colour and break down fruit pectin, so the jam may fail to set clear and firm.

“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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