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 fruit
Boil the oranges and lemons until a straw can pierce them.
Discard the water and open the fruit.
Remove the pulp and seeds from the fruit.
Cut the rind into very small slivers and add to the pulp.
Cook the marmalade
Combine 2 pounds of the mixture with 3 pounds of white sugar and boil until clear.
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
- Oranges
- Provide the bulk of the fruit, with peel that supplies bitterness and pectin for setting.
- Lemons
- Add acidity and additional pectin, helping the marmalade set and balancing sweetness.
- White sugar
- Sweetens the marmalade and, with heat, helps it thicken and set as it cooks.
The step that matters
Boiling until clear. The mixture must reach a rolling boil at a high enough sugar concentration for pectin and acid to gel. Stopping too early leaves it runny; boiling too long can darken and over-thicken it.
“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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