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Dessert

Isinglass Jelly

A light jelly made by dissolving isinglass in boiling water and cooling.

From an old cookbook · modernised transcription
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Isinglass Jelly

Ingredients

Directions

  1. Dissolve the isinglass in boiling water.

  2. Allow the mixture to cool to form a light jelly.

  3. Mix a teaspoonful of the jelly with tea or milk and water.

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

Isinglass
Gelling agent that sets the water into a light, wobbly jelly as it cools.
Boiling water
Dissolves the isinglass so it can spread evenly and later gel.

The step that matters

Dissolve the isinglass in boiling water. Isinglass must fully dissolve in hot water before cooling; undissolved granules leave specks and weak patches. Once it cools, the gelatin-like protein network forms the set, so the mixture should be clear and smooth before it is left to cool.

“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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