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
Dissolve the isinglass in ½ cup of water.
Squeeze the juice of the oranges into a bowl.
Grate the rind of one orange and the lemon into the bowl, then mix in the crushed loaf sugar.
Make the jelly
Add the dissolved isinglass to the mixture.
Warm the mixture in a saucepan without boiling.
Strain the mixture.
Stir until almost cold to prevent skinning.
Set
Pour into a mold or glasses and place in a cool area 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
- Gelatin-like protein that sets the liquid into a firm jelly as it cools.
- Oranges
- Juice provides the main liquid, flavor and tartness of the jelly.
- Loaf sugar
- Adds sweetness to balance the sharpness of the citrus juice.
- Lemon
- Its rind adds aromatic oils that give a brighter citrus fragrance.
The step that matters
Warm without boiling. Boiling can weaken the gelling power of isinglass, so the jelly may fail to set firmly. Keeping the mixture just warm protects its setting ability and keeps the flavor fresh.
“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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