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Dessert

Orange Jelly

A clear orange jelly made with orange rind, lemon juice, sugar, water, isinglass, and optional cochineal for color.

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 Jelly

Ingredients

Directions

Prepare

  1. Remove the rind from 2 oranges and half of the lemon.

  2. Squeeze the juice into a bowl.

Make the syrup

  1. In a saucepan, combine sugar and water.

  2. Boil until it becomes a syrup, then remove from heat.

  3. Add the juice and rind of the fruits.

  4. Cover the mixture.

  5. Return to heat.

Clarify and set

  1. Skim the surface while boiling.

  2. Gradually add ½ cup of water to clarify.

  3. Boil for another minute.

  4. Add dissolved isinglass.

  5. Pass the mixture through a jelly bag or fine sieve.

  6. Add cochineal for color.

  7. Fill a mold with the mixture.

  8. Place the mold on ice until set.

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
Sets the liquid into a firm, tender jelly as it cools.
Sugar
Adds sweetness and body, balancing the sharpness of the citrus.
Oranges
Provide the main flavor and juice that gives the jelly its color and aroma.
Lemon
Adds acidity and bright aroma from its rind and juice.

The step that matters

Skim and strain the clarifying mixture. Skimming foam while boiling and straining through a jelly bag or fine sieve removes particles, so the set jelly looks clear rather than cloudy.

“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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