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 Marmalade
Ingredients
Directions
Prepare
Halve the lemons and extract the juice, straining it.
Boil the rinds in plenty of water until tender, then drain.
Scoop out the pith and finely shred the skins.
Make the marmalade
Boil the lemon juice and sugar together to form a syrup.
Add the shredded skins and continue boiling until it reaches marmalade consistency.
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
- Lemons
- Provide the juice for acidity and the peel, whose pectin helps the marmalade set.
- Granulated sugar
- Sweetens the marmalade and, as it boils down, thickens it into a spreadable set.
The step that matters
Boil until marmalade consistency. As water evaporates, sugar concentrates and pectin and acid form a gel. Stopping too early leaves it runny, while boiling too long can make it stiff and dark.
“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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