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 from the oranges and lemons.
Grate the peel from half the fruit and steep it in 1 pint of cold water.
Make the jelly
Mix the steeped water with the juice, sugar, and isinglass.
Put 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.
Set
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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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
- Isinglass
- Gelatin-like setting agent that firms the juice into a clear jelly as it cools.
- Loaf sugar
- Adds sweetness and helps balance the sharpness of the citrus juice.
- Oranges
- Provide most of the juice and flavor, giving the jelly its base aroma and tartness.
- Lemons
- Add acidity and sharpness that balances the sweetness of the sugar.
The step that matters
Straining through a jelly bag until clear. Straining after boiling removes solids and cloudiness so the jelly sets clear; rushing this step or squeezing the bag leaves the jelly murky.
“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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