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Dessert

Orange and Lemon Jelly

A gelatinous dessert made from orange and lemon juice, isinglass, egg white, and cochineal coloring.

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 and Lemon Jelly

Ingredients

Directions

Prepare the juice and clarifying mixture

  1. Juice the oranges and lemons to yield about 1 pint of juice.

  2. Clarify the isinglass.

  3. Add an additional ½ ounce of isinglass.

  4. Beat the egg white and mix it with 1 pint of cold water, then whisk the mixture together.

  5. Pour the egg mixture over the isinglass.

Make the jelly

  1. Heat gently, stirring until scum forms.

  2. Boil for 2-3 minutes.

  3. Skim the mixture.

  4. Strain the mixture.

  5. Color half of the jelly with prepared cochineal.

  6. Leave the other half pale.

Set and serve

  1. Fill orange rinds with alternating stripes of the two jellies.

  2. Once set and cold, cut the jellies into quarters.

  3. Arrange the quarters on a dish.

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 + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  3. Orange + eggtop 31% of all pairs
    Smell alikelow
    Cooked together10,696 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Lemon and egg barely smell alike, yet cooks put them together in 44,316 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 jelly as it cools.
Egg white
Clarifies the liquid by trapping impurities that rise as scum for skimming.
Oranges
Provide the main juice, flavor and aroma of the jelly.
Lemons
Add acidity that brightens the sweetness of the orange juice.
Cochineal
Colors half of the jelly a deep red.

The step that matters

Heat gently, stirring until scum forms. Heating too fast or stirring late can break up the egg white scum so impurities stay suspended, leaving a cloudy jelly instead of a clear one.

Swap the orange

How well each one fits the dish's main ingredients (lemon, egg):

  1. Orangethe original
  2. Limefits about as well
  3. Raspberryfits less well
  4. Blueberryfits less well

Fit is the average pairing score against lemon, egg. Candidates are from the same food group and used in at least 100 recipes.

“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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