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Orange Isinglass Jelly

A clear orange jelly made with isinglass, sugar, and orange rind.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Orange Isinglass Jelly

Ingredients

Directions

Prepare the juice

  1. Strain the orange juice through a sieve or muslin, then through a thick cloth or jelly bag.

Make the jelly

  1. Dissolve the isinglass in the water and skim it well.

  2. Add the sugar and orange rind strips to the dissolved isinglass.

  3. Pour in the strained orange juice and stir well.

  4. Skim the mixture clean without allowing it to boil.

  5. Strain it again through a cloth or muslin folded many times.

Set

  1. When nearly cold, pour the mixture into molds.

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 + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

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

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

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
Gelatin-like protein that sets the liquid into a firm, tender jelly as it cools.
Sugar
Adds sweetness and body, balancing the tartness of the juice.
China orange juice
Provides the main flavor and liquid that forms the body of the jelly.
Lemon juice
Adds acidity to sharpen the flavor and brighten the orange taste.

The step that matters

Skim without boiling. Boiling would cloud the clear jelly and can weaken its setting power, so the mixture should be kept just below a boil while skimmed and strained.

“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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