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
Pare, core, and quarter the apples.
Boil the sweet cider until it reduces by half.
Make the apple butter
Add the apples to the boiling cider until the mixture thickens.
Cook slowly, stirring constantly and skimming as needed.
When apples separate from the cider, add 2 pounds of sugar for each bushel of apples.
Add a little ground cinnamon and boil until it reaches a smooth consistency.
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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Cider + cinnamontop 16% of all pairsSmell alikelowCooked together1,497 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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 thicken the mixture into a spreadable butter as they break down.
- Sweet cider
- Supplies liquid and sugars that cook down into the base and concentrate its flavour.
- Sugar
- Adds sweetness and helps the reduced mixture thicken and keep its texture.
The step that matters
Cook slowly and stir constantly. Cooking slowly while stirring keeps the sugars from scorching on the bottom of the pan and lets the apples break down evenly into a smooth, thick butter.
“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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