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
Grate the rind of the Seville oranges, China oranges, and lemons.
Juice three of each fruit and strain the juice.
Prepare 2 ounces of isinglass jelly according to package instructions.
Make the jelly
In a saucepan, combine the juice, lump sugar, and water, and boil until it thickens.
Add the syrup to the jelly and boil for a moment.
Strain the mixture and let it settle before pouring it 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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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
- Lump sugar
- Sweetens the jelly and thickens the syrup as it boils down.
- Isinglass jelly
- Gelatinous setting agent that firms the liquid into a sliceable jelly.
- Seville oranges
- Provide the juice and bitter aromatic rind that flavour the jelly.
- Lemons
- Add acidity and brightness that balance the sweetness.
The step that matters
Boiling the juice, sugar and water until it thickens. Sugar and water must reduce enough to concentrate the syrup; too little boiling leaves the jelly too loose to set, while overboiling makes it stiff and sticky.
“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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