Why it works: Lemon and egg are a kitchen classic. They rank in the top 19% of all ingredient pairs, and cooks put them together in 44,316 recipes. Both carry (e,e)-2,4-decadienal, which smells fatty, deep fried. The science ↓
Lemon Jelly
Ingredients
Directions
Prepare
Soak the gelatine in cold water for 10 minutes.
Pour boiling water over the lemon rinds and cover for 10 minutes.
Make the jelly
In a saucepan, combine the soaked gelatine, lemon rinds, lemon juice, and egg yolks.
Stir over low heat until it thickens like custard, avoiding boiling.
Strain through muslin and pour into a mold.
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 + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Lemon and egg barely smell alike, yet cooks put them together in 44,316 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 once it cools.
- Egg yolks
- Thicken the mixture as they gently set with heat, adding richness and a custard-like body.
- Lemon juice
- Provides the sharp acidity that gives the jelly its bright flavour.
- Lemon rinds
- Release aromatic oils into the hot water, adding lemon aroma and flavour.
The step that matters
Stir over low heat until it thickens like custard, avoiding boiling. Egg yolks set at relatively low temperatures. If the mixture boils, the yolks can scramble and curdle, leaving a grainy texture instead of a smooth, thickened base.
“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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