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Dessert

Constantia Jelly

A clear jelly made from Seville orange rind, isinglass, and sugar.

From an old cookbook · modernised transcription
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Why it works: Orange and sugar are a kitchen classic. They rank in the top 20% of all ingredient pairs, and cooks put them together in 19,212 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Constantia Jelly

Ingredients

Directions

  1. Infuse the Seville orange rind in 1 pint of water for 5 minutes.

  2. Add 1 ounce of isinglass and stir until dissolved.

  3. Add 4 ounces of sugar and stir until fully incorporated.

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. Orange + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

Orange and sugar barely smell alike, yet cooks put them together in 19,212 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

Isinglass
Sets the liquid into a clear, firm jelly as it cools.
Sugar
Sweetens the jelly and helps it set firm.
Seville orange rind
Adds bitter, aromatic citrus flavour to the infused water.

The step that matters

Dissolving the isinglass fully. Isinglass must be completely dissolved in the hot liquid before the sugar is added. Any undissolved granules will not set evenly and can leave a cloudy or lumpy jelly.

“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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