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
Soak the gelatine in cold water for 1 hour.
Add boiling water, sugar, and sour orange juice to the soaked gelatine.
Heat the mixture gradually to the boiling point, then strain through a fine sieve.
Pour the strained mixture into molds that have been wet with cold water.
Add optional flavorings
For added flavor, boil some peel in hot water or substitute 1/3 cup of lemon juice for part of the orange juice.
For a more complex flavor, grate the rind of the oranges and lemons, squeeze their juice, and combine with loaf sugar and water. Boil until it thickens.
Prepare 1 quart of isinglass jelly by boiling 2 ounces of isinglass with the syrup, then strain and let it settle before pouring into molds.
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
- Gelatine
- Sets the liquid into a firm, sliceable jelly as it cools.
- Sugar
- Adds sweetness and helps give the jelly a smooth, clear body.
- Sour orange juice
- Provides the main flavor and acidity of the jelly.
The step that matters
Soaking the gelatine. Gelatine must hydrate fully in cold water before heating so it dissolves evenly. Adding it to hot liquid without soaking can leave lumps and weak setting.
“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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