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 the juice
Wash the lemons.
Slice the lemons thinly.
Place the lemon slices and cold water in a large pot.
Boil until the rinds are tender.
Squeeze the mixture through a cloth to extract the juice.
You should have 3 cups of juice. If you have less than 3 cups, add water to make up the difference. If you have more, boil it down to 3 cups.
Make the jelly
Combine the lemon juice and sugar.
Stir until the sugar is dissolved.
Strain the mixture through a cloth again.
Cook the mixture in one go or divide it into two batches for clearer jelly.
Watch the jelly carefully as it sets.
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.
-
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
- Lemons
- Provide the juice and acidity that give the jelly its tart flavour and help it set.
- Sugar
- Sweetens the jelly and, with the juice and cooking, helps it set firm.
- Cold water
- Extracts flavour from the lemons during boiling and adjusts the juice to the target volume.
The step that matters
Watch the jelly carefully as it sets. Setting depends on the right balance of sugar, acid and cooking, so the jelly can over-set or stay runny if it is not checked closely as it cools.
“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.
More lemon jelly recipes
You might also like
Lemon Cake228 recipes
Lemon Ice147 recipes
Lemon Sherbet103 recipes
Lemon Custard64 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.