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 jelly
Dissolve the gelatine in the boiling water and strain it.
Mix the orange juice and lemon juice, then strain the mixture.
Add the strained juice to the gelatine.
Sweeten the mixture with loaf sugar.
Clarify and set
Boil for 5 to 10 minutes.
Beat the egg whites, then stir them into the mixture.
Strain the mixture through a jelly bag.
Rinse a mold with cold water and pour the jelly into the mold.
Set in a cold place until firm.
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
- Cox's gelatine
- Provides the gel structure that makes the juice set into a firm jelly.
- Orange juice
- Supplies the main flavour and liquid for the jelly.
- Lemon juice
- Adds acidity that brightens the sweetness and flavour of the jelly.
- Loaf sugar
- Sweetens the jelly to taste.
- Egg whites
- Bind to impurities when boiled so they can be strained out, leaving a clearer jelly.
The step that matters
Strain through a jelly bag. Straining after the egg whites have been stirred in and heated lets the coagulated whites trap cloudy particles, so the jelly comes out clear rather than murky.
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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