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 ↓
Apple Marmalade
Ingredients
Directions
Prepare the apples
Peel and core the lemon pippins.
Cook the apples until soft.
Mash the cooked apples and strain them.
Make the marmalade
Add the sugar, grated lemon rind, and lemon juice to the apple puree.
Cook the mixture until it thickens, stirring frequently.
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 pippins or apples
- Provide the pectin-rich fruit base that cooks down into a smooth puree.
- Lump sugar
- Sweetens the marmalade and helps it thicken as it cooks down.
- Lemon juice
- Adds acidity that brightens the flavour and supports pectin set.
The step that matters
Cook the mixture until it thickens, stirring frequently.. Sugar and fruit need sustained cooking to reach a set, and stirring prevents scorching on the bottom of the pan as the mixture concentrates.
“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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