Why it works: Cider and apple 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 the cider
Boil the cider down to half its original quantity.
Cook the apple butter
Peel and core the apples.
Add the apples to the boiled cider and cook until soft, stirring constantly for 8 to 10 hours.
To check if done, it should adhere to an inverted plate.
Store
Store in stone jars, covering with writing paper cut to fit and pressing it down closely on the apple butter.
Cover the jars with thick brown paper, tied down snugly.
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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Cider + appletop 2% of all pairsSmell alikemoderateCooked together1,238 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- New cider
- Reduced by boiling to concentrate its sugars and flavor, forming the base of the butter.
- Cooking apples
- Break down into soft pulp that thickens into a spreadable butter as they cook.
The step that matters
Stirring during the long cook. Constant stirring over 8 to 10 hours keeps the thick mixture from scorching on the bottom of the pan, which would leave a burnt taste and dark flecks.
“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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