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
Soak the gelatin in ½ pint of cold water for 2 hours.
Grate the orange rind into a bowl.
Pour the orange juice over the grated rind.
Let the rind and juice stand for 2 hours.
Beat the egg whites.
Stir the beaten egg whites into the juice.
Cook and set
Add the remaining ingredients.
Pour everything into a saucepan.
Stir over heat for 10 minutes until it bubbles.
Cover the pan.
Maintain the mixture at boiling point for 30 minutes.
Strain the mixture as directed for wine jelly.
Pour the strained mixture into a mold.
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 + lemontop 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).
Sugar and lemon 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
- Egg whites
- Whipped whites help clarify the jelly as they coagulate and trap impurities during cooking.
- Gelatine
- Sets the liquid into a firm jelly as it cools.
- Sugar
- Adds sweetness and helps give the jelly body and a clear, glossy set.
- Lemons
- Add acidity that balances the sweetness and brightens the orange flavour.
- Orange juice
- Provides the main orange flavour and liquid for the jelly.
The step that matters
Maintain the mixture at boiling point for 30 minutes. Egg whites need heat to coagulate and trap sediment for clarifying. Boiling gently while covered helps them rise and bind impurities, which are then strained out for a clear jelly.
Swap the orange
How well each one fits the dish's main ingredients (sugar, lemon, egg):
- Orangethe original
- Vanillafits about as well
- Limefits less well
- Raisinfits less well
Fit is the average pairing score against sugar, 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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