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
In a large pot, combine the sugar and milk.
Add the butter and grated chocolate, then bring to a boil.
Boil the mixture while stirring thoroughly until it reaches a soft ball stage.
Remove from heat and add vanilla and nuts if desired.
Set and cut
Pour the mixture onto buttered plates and let it cool.
Once set, cut into squares.
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.
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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Vanilla + nutstop 8% of all pairsSmell alikemoderateCooked together638 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- White sugar
- Provides sweetness and, as it dissolves and cooks, forms the firm structure of the fudge.
- Milk
- Adds moisture and milk solids that contribute to a creamy, soft texture.
- Butter
- Adds fat that makes the fudge smooth and rich in texture.
- Grated chocolate
- Adds chocolate flavour and fat that helps give the fudge its body.
The step that matters
Boiling to the soft ball stage. Stirring thoroughly keeps the sugar from scorching on the base of the pot. The final sugar concentration set by the cooking point decides whether the fudge turns out soft or hard once it cools.
Swap the nuts
The recipe marks nuts as optional. How well each one fits the dish's main ingredients (sugar, milk, butter, chocolate, vanilla):
- Almondfits better
- Cocoafits better
- Hazelnutfits better
- Nutsthe original
Fit is the average pairing score against sugar, milk, butter, chocolate, 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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