Why it works: Apple and cider are a kitchen classic. They rank in the top 2% of all ingredient pairs, and cooks put them together in 1,238 recipes. Both carry 1-octen-3-one, which smells mushroom, metallic. The science ↓
Apple Butter
Ingredients
Directions
Prepare
Peel, quarter, and core the apples.
Stew the apples in water until soft, then pass through a sieve.
Boil the cider down to 3 gallons.
Cook
On the same day, combine the boiled cider and sifted apples, and cook all day while stirring continuously.
One hour before finishing, add the coffee sugar and ground cinnamon.
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 + cidertop 2% of all pairsSmell alikemoderateCooked together1,238 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Apple + cinnamontop 4% of all pairsSmell alikemoderateCooked together5,598 recipes
Shared aroma: methyl cinnamate (strawberry).
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Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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Coffee + cinnamontop 10% of all pairsSmell alikemoderateCooked together895 recipes
Shared aroma: 4-methoxybenzaldehyde (sweet, anise).
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Cider + cinnamontop 16% of all pairsSmell alikelowCooked together1,497 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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
- Apples
- Provide the bulk and pectin that give the butter its thick, spreadable body.
- Cider
- Supplies liquid and tartness, and boiling it down concentrates its sweetness and flavor.
- Coffee sugar
- Adds sweetness and deepens the color as the mixture cooks down slowly.
- Ground cinnamon
- Adds warm, aromatic spice flavor.
The step that matters
Stirring continuously during the long cook. A thick, sugar-rich mixture sticks and scorches on the bottom of the pot as water evaporates. Constant stirring spreads the heat evenly, prevents burnt flavor, and lets the butter thicken gradually.
“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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