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 base
In a saucepan, combine the water, isinglass, sugar, and the rind of 1 orange and 1 lemon.
Heat the mixture until the isinglass dissolves, stirring and removing any scum.
Add the juice of the Seville orange, the juice of the lemon, and enough juice from the China oranges to make a total of 1 pint.
Stir over heat until just before boiling, then skim well.
Strain the jelly through a fine sieve or jelly bag.
Set and serve
When nearly cold, pour it into a wetted mold.
Once set, turn it out onto a dish and garnish as desired.
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
- Gelatin-like protein that sets the liquid into a firm jelly as it cools.
- Loaf sugar
- Adds sweetness and body to the jelly.
- Seville orange
- Provides sharp citrus acidity and flavour in the juice.
- Lemon
- Adds extra acidity and bright citrus flavour to balance the sweetness.
The step that matters
Skim and strain the jelly before it sets. Stirring off scum and straining out solids leaves a clear, smooth jelly. Skimming just before boiling prevents cloudiness and keeps the flavour clean, while the isinglass only sets properly once the liquid is clear and cooled enough to pour.
“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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