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 ↓
Pennsylvania Apple Butter
Ingredients
Directions
Prepare
Pare, core, and quarter the apples.
Make the butter
Boil down the cider to half its original quantity.
Add the apples to the reduced cider.
Continue boiling while stirring constantly until thick.
Finish
Let cool and transfer to jars.
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.
-
Apple + cidertop 2% of all pairsSmell alikemoderateCooked together1,238 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Apple + allspicetop 13% of all pairsSmell alikemoderateCooked together998 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
-
Cider + allspicetop 14% of all pairsSmell alikelowCooked together873 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
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 butter and add natural sweetness.
- New cider
- Supplies the liquid that reduces into a concentrated, tangy base for the butter.
- Ground allspice
- Adds warm, aromatic spice flavor to the finished butter.
The step that matters
Continue boiling while stirring constantly until thick. As the mixture reduces, its sugars concentrate and can scorch on the bottom of the pan. Constant stirring prevents sticking and burning, and the butter thickens as water evaporates.
Swap the allspice
How well each one fits the dish's main ingredients (apple, cider):
- Cinnamonfits better
- Clovefits better
- Allspicethe original
- Gingerfits about as well
Fit is the average pairing score against apple, cider. 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.
More apple butter recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Apple Pudding256 recipes
Apple Cake80 recipes
Apple Meringue75 recipes
Dried Apple Cake51 recipes