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Dessert

Apple Butter

Apple butter is a thick, sweet spread made by cooking stewed apples with vinegar and brown sugar.

From an old cookbook · modernised transcription
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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

  1. In a large pot, combine the stewed apples, cider vinegar, and brown sugar.

  2. Boil the mixture until it reduces by about one-third.

  3. Season with lemon or your choice of spice if desired.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Apple + cidertop 2% of all pairs
    Smell alikemoderate
    Cooked together1,238 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

  2. Cider + vinegartop 6% of all pairs
    Smell alikemoderate
    Cooked together3,431 recipes

    Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).

  3. Apple + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  4. Vinegar + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Apple + vinegartop 16% of all pairs
    Smell alikemoderate
    Cooked together1,884 recipes

    Shared aroma: isoamyl acetate (banana, fruity).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Stewed apples
Form the bulk of the butter and supply the fruit flavor and body as they cook down.
Cider vinegar
Adds acidity that brightens the flavor and balances the sweetness of the sugar.
Brown sugar
Adds sweetness and caramel-like depth, and helps the mixture darken as it cooks.

The step that matters

Boiling until reduced by about one-third. Cooking down concentrates the flavor and thickens the mixture. Stopping too early leaves it thin and watery, while cooking too long or too hot can scorch the sugars and stick to the pot.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (apple, cider, vinegar, sugar):

  1. Pearfits better
  2. Plumfits better
  3. Grapefits better
  4. Lemonthe original

Fit is the average pairing score against apple, cider, vinegar, sugar. 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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