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Dessert

Fudge

A sweet chocolate confection made by cooking sugar, milk, butter, cocoa, and vanilla until thick and then cutting into squares.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Cocoa and vanilla work together. They rank in the top 4% of all ingredient pairs, and cooks put them together in 357 recipes. Both carry sotolon, which smells curry, maple. The science ↓

Fudge

Ingredients

Directions

Make the fudge

  1. In a saucepan, combine sugar, milk, and butter.

  2. Cook over medium heat until the sugar is melted.

  3. Add cocoa and stir well.

  4. Boil for 15 minutes, then remove from heat.

  5. Stir in vanilla until creamy.

Set and serve

  1. Pour onto buttered plates and 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.

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. Cocoa + vanillatop 4% of all pairs
    Smell alikemoderate
    Cooked together357 recipes

    Shared aroma: sotolon (curry, maple).

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

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

  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. Milk + cocoatop 10% of all pairs
    Smell alikemoderate
    Cooked together643 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

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

Sugar
Provides sweetness and, as it dissolves and cooks, forms the body of the fudge.
Milk
Adds moisture and milk solids that give the fudge a softer, creamier texture.
Butter
Adds fat that makes the fudge smooth and rich in mouthfeel.
Cocoa
Supplies chocolate flavour and dark colour to the fudge.

The step that matters

Boiling for 15 minutes. Sugar concentration rises as water evaporates, and the cooking time controls how firm the fudge sets. Boiling too briefly leaves it soft and runny, while overcooking makes it hard and grainy.

Swap the cocoa

How well each one fits the dish's main ingredients (sugar, milk, butter, vanilla):

  1. Almondfits about as well
  2. Cocoathe original
  3. Chestnutfits about as well
  4. Hazelnutfits less well

Fit is the average pairing score against sugar, milk, 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.

More fudge recipes

Chocolate 85Maple 38Cake 30Marshmallow 18Divinity 15Peanut Butter 13 See all 48 →

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