Why it works: Apple and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,501 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Apple Marmalade
Ingredients
Directions
Prepare the apples
Peel and slice the apples finely.
Add cold water and lemon juice, cover, and cook slowly until soft.
Press the mixture through a sieve into a bowl.
Make the marmalade
For each pound of marmalade, add ½ pound of sugar to the bowl.
In a fresh kettle, combine the marmalade, 1 cup of cold water, and a little vanilla.
Cook over brisk heat for 10 minutes.
Boil for 12 minutes while constantly stirring.
Jar and seal
Fill Mason jars while hot 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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Apple + vanillatop 8% of all pairsSmell alikemoderateCooked together1,501 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Lemon + vanillatop 15% of all pairsSmell alikemoderateCooked together5,961 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Cooking apples
- Provide pectin and body, which help the marmalade thicken and set as it cooks.
- Granulated sugar
- Sweetens and thickens the marmalade, and helps it keep once sealed.
- Lemon juice
- Adds acidity that helps pectin from the apples form a firm set.
The step that matters
Boiling while stirring constantly. Sugar and pectin only thicken properly at a full boil, but the sugar-rich mixture can scorch on the bottom of the kettle. Constant stirring spreads the heat evenly and prevents burning, which would spoil the flavor.
Swap the lemon
How well each one fits the dish's main ingredients (apple, sugar, vanilla):
- Pearfits better
- Figfits better
- Peachfits better
- Lemonthe original
Fit is the average pairing score against apple, sugar, vanilla. 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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