Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Lemon Jelly
Ingredients
Directions
Prepare
Juice the lemons, avoiding any peel.
Strain the juice through a flannel bag to ensure it is clear.
Make and set the jelly
Dissolve the sugar in water and add the strained lemon juice.
Mix in the isinglass until fully dissolved.
Pour into molds and refrigerate until 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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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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
- Lemon juice
- Provides the sharp acidity and main flavour of the jelly.
- Sugar
- Sweetens the juice and balances its acidity.
- Isinglass
- Gelatin-like setting agent that firms the liquid into a jelly when chilled.
The step that matters
Dissolve the isinglass fully. Isinglass must dissolve completely in the warm sweetened liquid before chilling. Undissolved granules leave weak spots and uneven set, so the jelly may not firm evenly.
“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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