Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Orange Marmalade
Ingredients
Directions
Prepare the rinds
Grate the rinds of the oranges and cut them into quarters, removing the flesh and pips.
Soak the rinds in cold water overnight, then boil for 20 minutes, changing the water once.
Once tender, drain the rinds, slice them thin, and set aside.
Make and jar the marmalade
Combine the pulp and juice of the oranges with the sliced rinds and sugar in a preserving pan.
Heat slowly, then boil for 20 to 30 minutes, skimming off any foam.
Pour the marmalade into jars and seal.
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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Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Orange + sugartop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Seville oranges
- Provide the bitter rinds and pectin-rich pulp that give marmalade its flavour and set.
- Lemons
- Add extra acidity and natural pectin to help the marmalade set.
- Sugar
- Sweetens the marmalade and helps it gel and keep well when boiled.
The step that matters
Boiling until the marmalade sets. Sugar and pectin need a sustained boil to reach the setting point. Underboiling leaves a runny marmalade, while overboiling can make it dark and bitter.
“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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