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 of the fruit and steep it in 1 pint of cold water.
Make the jelly
Mix the steeped water with the juice, sugar, and isinglass.
Pour 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 to set.
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
- Gelling agent that sets the liquid into a firm, wobbly jelly when cooled.
- Sugar
- Adds sweetness and helps balance the sharpness of the citrus juice.
- Oranges
- Provide the main juice, flavour and aroma of the jelly.
- Lemons
- Add acidity that brightens the flavour and balances the sweetness.
The step that matters
Strain through a jelly bag until clear. Straining removes suspended pulp and peel particles, so the set jelly looks clear rather than cloudy. Boiling must be brief enough to avoid weakening the gelling agent's set.
“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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