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Dessert

Boston Caramels

Boston Caramels are a sweet confection made from chocolate, sugar, molasses, milk, butter, and vanilla flavor.

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

Cook the caramel

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

  2. Bring the mixture to a boil over medium heat and cook for about 25 minutes.

  3. The mixture should be soft and not too brittle.

Pour and mark

  1. Pour the caramel into buttered tins and mark deeply with a knife.

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

Grated chocolate
Adds rich flavor and cocoa fat that gives the caramel a smooth, dense body.
Yellow sugar
Provides sweetness and forms the sugar structure that sets the caramel as it cools.
New orleans molasses
Adds deep flavor, moisture, and a chewy texture.
Milk
Adds creaminess and softens the texture of the caramel.
Butter
Adds fat that keeps the caramel smooth and tender rather than hard.

The step that matters

Judge the cooking time by texture. As the mixture cooks, water evaporates and the sugar concentration rises. Cooking too long makes the caramel harden and turn brittle once cooled, so it should be checked for a soft, not brittle, texture.

“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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