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Dessert

Boston Caramels

A chewy caramel candy made with chocolate, sugar, molasses, milk, butter, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Boston Caramels

Ingredients

Directions

Make the caramel

  1. In a large pot, combine grated chocolate, yellow sugar, New Orleans molasses, milk, and butter.

  2. Cook over medium heat, stirring frequently, for about 25 minutes until the mixture is soft, not brittle.

Set and cut

  1. Pour into buttered tins and use a knife to mark deeply for cutting.

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. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

  2. Chocolate + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  4. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

  5. Sugar + molassestop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Yellow sugar
Provides sweetness and, as it cooks, helps form the soft, chewy body of the caramel.
New orleans molasses
Adds moisture, deep flavor, and a softer, chewier texture to the caramel.
Milk
Adds moisture and dairy richness, helping the mixture set soft rather than brittle.
Grated chocolate
Adds bittersweet flavor and fat, contributing to the caramel's body and richness.
Butter
Adds fat for richness and a smoother, tender texture in the finished caramel.

The step that matters

Cooking to a soft, not brittle, texture. Sugar candy becomes brittle when cooked to higher temperatures, so stopping while the mixture is still soft keeps the caramels chewy. Stirring frequently over medium heat prevents scorching on the bottom of the pot, which would add bitter flavor.

“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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