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Dessert

Chocolate Fudge

A sweet chocolate confection made by cooking sugar, milk, and chocolate until a soft ball forms, then cooled and cut into squares.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Chocolate Fudge

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 ↓

Chocolate Fudge

Ingredients

Directions

Make the fudge

  1. In a saucepan, combine sugar, sweet milk, and grated chocolate.

  2. Add butter and cook over medium heat, stirring constantly until the mixture forms a soft ball when tested in cold water.

  3. Remove from heat and stir in vanilla extract.

  4. If desired, mix in chopped nuts or crystallized fruits.

  5. Beat the mixture until creamy, then pour it into buttered tins.

Set and cut

  1. Allow to cool, then cut into squares.

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.

Photo for illustrative purposes only · Contact us to use it

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. Vanilla + walnuttop 10% of all pairs
    Smell alikestrong
    Cooked together2,730 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

Granulated sugar
Forms the bulk of the fudge and, when cooked to a soft ball, sets into a firm yet tender texture.
Sweet milk
Adds moisture and dissolves the sugar, giving the fudge a creamy body.
Baker's chocolate
Provides the chocolate flavour and fat that give the fudge its richness.
Butter
Adds fat for smoothness and a rich mouthfeel in the finished fudge.

The step that matters

Cooking to a soft ball. Sugar syrup must reach the right concentration to set properly. Stirring constantly prevents scorching and sugar crystals, and undercooking leaves the fudge soft and runny while overcooking makes it hard and grainy.

Swap the walnut

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

  1. Almondfits better
  2. Cocoafits better
  3. Hazelnutfits better
  4. Walnutthe original

Fit is the average pairing score against sugar, milk, chocolate, butter, vanilla. 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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