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Dessert

Molasses Candy

Molasses candy is a sweet made by boiling molasses and sugar, then adding butter, cream of tartar, baking soda, and optional nuts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Molasses Candy

Ingredients

Directions

  1. Combine molasses and sugar in a pot and boil, stirring every minute.

  2. When the mixture is partly cooked, add the butter, along with the cream of tartar.

  3. Test for doneness by dropping a small amount into cold water; it should harden.

  4. Just before pouring out the candy, stir in the baking soda.

  5. If desired, mix in nut meats before cooling.

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. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  2. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

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

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

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Butter + walnuttop 15% of all pairs
    Smell alikemoderate
    Cooked together6,832 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Molasses
Forms the bulk of the candy and gives it its dark color and deep flavor.
Sugar
Adds sweetness and helps the mixture harden into a brittle candy as it cooks.
Cream of tartar
Acidifies the syrup, helping prevent crystallization and keeping the candy smooth.
Baking soda
Reacts with the hot acidic syrup to release gas, creating a light, airy texture.

The step that matters

Testing for doneness in cold water. Cooking the syrup to the right point determines whether the candy sets hard. Under-cooked syrup stays sticky, while over-cooked syrup becomes brittle and may scorch.

Swap the walnut

The recipe marks walnut as optional. How well each one fits the dish's main ingredients (molasses, sugar, butter, cream):

  1. Almondfits better
  2. Pecansfits about as well
  3. Chestnutfits about as well
  4. Walnutthe original

Fit is the average pairing score against molasses, sugar, butter, cream. 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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