Why it works: Sugar and lemon 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
Make the syrup
Boil the water, sugar, and lemon rind for 3 minutes to make a syrup.
Set the jelly
Soak the gelatine in cold water, then dissolve it in the hot syrup.
Add the lemon juice to the mixture.
Strain through cheesecloth into a moistened mold.
Chill 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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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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, tender jelly as it cools.
- Sugar
- Sweetens the jelly and helps build the syrup base.
- Lemon juice
- Adds acidity and bright lemon flavour to balance the sweetness.
- Lemon rind
- Contributes aromatic lemon oils that flavour the syrup.
The step that matters
Dissolve the gelatine in the hot syrup. Gelatine must be fully dissolved and well soaked first, or it leaves gritty specks or sets unevenly. Keep the syrup hot enough to melt it, but do not boil it again, since prolonged boiling can weaken gelatine's setting power.
“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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