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 ↓
Grape Marmalade
Ingredients
Directions
Prepare
Remove seeds from the grapes and use the skins and pulp.
Grind the oranges and lemon until fine, then add to the grapes.
Cook
Add 1 cup of sugar for each cup of the grape mixture.
Cook until the juice forms a light jelly.
Just before removing from heat, stir in the chopped walnuts and raisins.
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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Grape + orangetop 6% of all pairsSmell alikemoderateCooked together1,771 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Grape + walnuttop 8% of all pairsSmell alikemoderateCooked together1,427 recipes
Shared aroma: 1-hexanal (fruit).
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Lemon + walnuttop 10% of all pairsSmell alikestrongCooked together2,149 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Orange + walnuttop 12% of all pairsSmell alikemoderateCooked together1,058 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Grapes
- Skins and pulp provide the fruit body, natural pectin and flavour of the marmalade.
- Sugar
- Sweetens the mixture and, as it cooks, helps the juice thicken into a jelly-like set.
- Oranges
- Add citrus acidity and bitter aroma, and their peel contributes pectin to help set the jelly.
- Lemon
- Adds acidity and extra pectin, helping the marmalade brighten in flavour and set.
- English walnuts
- Add crunch and a nutty flavour that contrasts with the soft, jelly-like texture.
- Raisins
- Add chewy texture and concentrated sweetness to the finished marmalade.
The step that matters
Cook until the juice forms a light jelly. Pectin and sugar must be cooked to the right concentration to set. Undercooking leaves the marmalade runny, while overcooking can make it stiff and dull in flavour.
Swap the raisin
How well each one fits the dish's main ingredients (grape, orange, lemon, sugar, walnut):
- Figfits better
- Cranberryfits better
- Vanillafits better
- Raisinthe original
Fit is the average pairing score against grape, orange, lemon, sugar, walnut. 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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