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Sponge Molasses Candy

A chewy candy made by boiling molasses, brown sugar, butter, and vinegar, then adding baking soda and cooling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Molasses and sugar are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 9,225 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Sponge Molasses Candy

Ingredients

Directions

Make the candy

  1. Boil molasses, brown sugar, butter, and vinegar together.

  2. Test by dropping a bit into cold water; if it hardens, remove from heat.

  3. Stir in baking soda and beat vigorously until the mixture is thick.

Set

  1. Pour into a buttered pan and let it cool.

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. Molasses + sugartop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

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

  3. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Butter + vinegartop 23% of all pairs
    Smell alikemoderate
    Cooked together13,513 recipes

    Shared aroma: isoamyl acetate (banana, pear).

  5. Molasses + vinegartop 26% of all pairs
    Smell alikelow
    Cooked together1,253 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

Molasses
Provides the dark color, deep flavor, and much of the sweetness in the candy.
Brown sugar
Adds sweetness and helps the mixture harden into a brittle candy as it cooks.
Baking soda
Reacts with the hot syrup to release gas, making the candy light and airy as it sets.
Vinegar
Adds acidity that balances the sweetness and helps prevent crystallization in the syrup.

The step that matters

Testing the cook stage. Sugar syrup must reach the correct temperature to set properly. Removing it too early leaves candy that stays soft and sticky, while cooking too long makes it bitter or hard to bite. The cold water test checks the stage by seeing whether a drop hardens.

“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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