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Dessert

Chocolate Toffee

A sweet confection made from butter, treacle, brown sugar, vanilla, chocolate, and milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Vanilla and milk 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 ↓

Chocolate Toffee

Ingredients

Directions

Make the toffee

  1. Grate the chocolate very fine and mix it with the milk until smooth.

  2. Add the butter, treacle, brown sugar, and vanilla essence; mix well.

  3. Boil the mixture for 10 minutes, stirring constantly.

Set and serve

  1. Pour the mixture into buttered tins and let it cool.

  2. The toffee should be firm but not crisp, breaking like chocolate.

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. Vanilla + milktop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

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

  2. Vanilla + chocolatetop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

  3. Butter + milktop 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 + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together15,404 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

Brown sugar
Provides sweetness and the rich, caramel-like flavour of the toffee.
Butter
Adds fat for a smooth texture and rich mouthfeel in the set toffee.
Cake chocolate
Adds chocolate flavour and colour to the mixture.
Milk
Adds moisture and dairy solids that help build a creamy, softer toffee.
Treacle
Adds moisture, deep flavour and helps the toffee brown slightly as it cooks.

The step that matters

Boil for 10 minutes while stirring constantly. Sugar must reach the right temperature to set firm without turning crisp or grainy. Constant stirring prevents scorching on the base of the pan and keeps the sugar evenly dissolved as the mixture thickens.

“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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