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 ↓
Lemon Jelly
Ingredients
Directions
Prepare
Dissolve the isinglass in 1 pint of water.
Press the juice from the oranges and lemons.
Make the jelly
Boil 3 lbs of sugar in 1 pint of water to create a syrup.
Strain the juice and dissolved isinglass into the boiling syrup and stir gently.
When the mixture is nearly cold, pour it into molds.
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
- Sets the liquid into a firm, tender gel as it cools.
- Sugar
- Sweetens the jelly and helps give it body in the syrup.
- Oranges
- Supply the main juice, adding flavor and acidity.
- Lemons
- Add sharp acidity that balances the sweetness.
The step that matters
Pour the mixture into molds when nearly cold. Isinglass sets as the liquid cools. Pouring while the mixture is still too hot can cause the gel to form unevenly or fail to hold its shape, while waiting until it is nearly cold lets it thicken just enough to set cleanly in the molds.
“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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