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
Squeeze the juice of the oranges and lemons.
Grate the peel of half the fruit and steep it in 1 pint of cold water.
Make the jelly
Mix the steeped peel with the juice, sugar, isinglass, and beaten egg whites.
Pour the mixture into a saucepan and stir until it boils.
Let it boil for a few minutes, then strain through a jelly bag until clear.
Pour into a mold or glasses.
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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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).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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 juice into a firm jelly as it cools.
- Whites of 7 eggs
- Coagulate when heated, helping to clarify the liquid for straining.
- Loaf sugar
- Sweetens the jelly and adds body to the set.
- Juice of 8 oranges
- Provides the main flavour and acidity of the jelly.
- Juice of 6 lemons
- Adds acidity and sharpness that balances the sweetness.
The step that matters
Strain through a jelly bag until clear. Straining must wait until the egg whites have coagulated and the mixture has boiled; the trapped solids give clarity. Pushing or squeezing the bag can cloud the jelly, so let it drip naturally.
Swap the orange
How well each one fits the dish's main ingredients (lemon, sugar, egg):
- Orangethe original
- Vanillafits about as well
- Limefits less well
- Raisinfits less well
Fit is the average pairing score against lemon, sugar, 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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