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 the juice and syrup
Squeeze the juice from the oranges and lemons, removing all seeds to avoid bitterness.
Make a syrup by boiling the sugar and water with the egg white for 5 minutes, adding cold water to stop the boiling.
Strain the syrup through a napkin into a basin.
Make the jelly
Rub the zest from the two oranges with sugar to extract flavor, then mix it with the juice.
Add the boiling sugar syrup to the juice mixture and strain through a flannel bag.
Dissolve the isinglass in 2 pints of water, simmer until reduced to 1 pint, and strain through a silk sieve.
When the mixture is nearly cold, add the dissolved isinglass.
Pour into a mold that is not too ornate for easy removal.
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.
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Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + syruptop 6% of all pairsSmell alikestrongCooked together5,842 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Orange + sugartop 20% of all pairsSmell alikelowCooked 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
- Oranges
- Provide the main juice and flavor, with zest adding aromatic oil.
- Loaf sugar
- Adds sweetness and body, and helps the jelly set firm.
- Isinglass
- Gelatin-like setting agent that gives the jelly its firm, sliceable structure.
- Egg white
- Clarifies the syrup by collecting impurities, leaving a clear jelly.
- Lemons
- Add acidity that balances the sweetness and sharpens the flavor.
The step that matters
Adding the isinglass when nearly cold. If the mixture is too hot, the dissolved isinglass may not set properly; if it is too cold, it can thicken unevenly or set in lumps before it is well mixed through the liquid.
Swap the orange
How well each one fits the dish's main ingredients (lemon, sugar, egg, syrup):
- Vanillafits better
- Orangethe original
- Raisinfits about as well
- Raspberryfits less well
Fit is the average pairing score against lemon, sugar, egg, syrup. 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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