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
Make the jelly
Melt isinglass and sugar in water.
Add orange and lemon peel, and boil until syrupy.
Remove from heat and add the juice of the oranges and lemons.
Strain the mixture through flannel.
Set and serve
Pour into molds and let 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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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + orangetop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and lemon 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, tender jelly as it cools.
- White sugar
- Adds sweetness and helps give the jelly its body and clear, glossy texture.
- Orange juice
- Supplies the main citrus flavour and acidity that defines the jelly.
- Lemon juice
- Adds sharp acidity that balances the sweetness and brightens the orange flavour.
The step that matters
Boil until syrupy. Boiling with the peel concentrates sugar and flavour and reduces water content, so the jelly sets firmly and tastes strongly of citrus. Under-boiling leaves it weak and slow to 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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