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
Slice the oranges as thin as possible, discarding the seeds.
Cover the sliced oranges with cold water and let them stand overnight in a crock.
Boil the oranges quickly for 45 minutes.
Return the mixture to the crock and let it stand until the next day.
Cook with sugar
For every cup of fruit, add one cup of sugar.
Boil the fruit and sugar until the fruit is clear and tender.
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).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Orange + sugartop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and lemon 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, along with pectin-rich peel and pith that help the marmalade set.
- Sugar
- Adds sweetness and, with the fruit's pectin and acid, helps the marmalade gel and keep.
The step that matters
Boil the fruit and sugar until the fruit is clear and tender. The fruit must soften fully before the sugar is added or boiled down, so the peel is tender. Under-cooking leaves tough peel, while over-cooking can make the set too firm or dark.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (orange, sugar):
- Vanillafits better
- Lemonthe original
- Figfits less well
- Pineapplefits less well
Fit is the average pairing score against orange, sugar. Candidates are from the same food group and used in at least 100 recipes.
“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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