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Dessert

Cracker Jack

A caramelized popcorn candy made with corn syrup, sugar, butter, and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Corn and coconut match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 306 recipes. Both carry decanal, which smells soap, orange peel. The science ↓

Cracker Jack

Ingredients

Directions

Make the coating

  1. Combine corn syrup, sugar, butter, and vinegar in a saucepan.

  2. Boil the mixture until it hardens in water.

Coat and finish

  1. Add popcorn to the mixture until it is fully coated.

  2. Optionally, mix in coconut or nut kernels for added flavor.

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. Corn + coconuttop 5% of all pairs
    Smell alikestrong
    Cooked together306 recipes

    Shared aroma: decanal (soap, orange peel).

  2. Syrup + sugartop 6% of all pairs
    Smell alikestrong
    Cooked together5,842 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Butter + coconuttop 12% of all pairs
    Smell alikemoderate
    Cooked together3,467 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  4. Corn + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together7,345 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

  5. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

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

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

What each ingredient does

Corn syrup
Keeps the sugar syrup smooth and helps it set into a crisp, brittle coating.
Sugar
Forms the sweet base that hardens as the syrup cooks down.
Butter
Adds fat for a richer flavor and a more tender bite.
Vinegar
Adds a small amount of acidity that helps keep the syrup from crystallizing.

The step that matters

Boil the mixture until it hardens in water. Sugar syrup passes through distinct stages as water boils off. Stopping too early leaves a sticky coating, while cooking too long can scorch the sugar and taste bitter. A small dropped sample that turns brittle in cold water signals the right point.

Swap the coconut

The recipe marks coconut as optional. How well each one fits the dish's main ingredients (corn, syrup, sugar, butter, vinegar):

  1. Vanillafits better
  2. Cherryfits about as well
  3. Figfits about as well
  4. Coconutthe original

Fit is the average pairing score against corn, syrup, sugar, butter, vinegar. 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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