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 V
Ingredients
Directions
Make the fudge
Melt the butter in a saucepan.
Add the milk and sugar; stir until the sugar is dissolved.
Add the cocoa or chocolate and heat to boiling.
Boil for 12 minutes, stirring occasionally to prevent burning.
Remove from heat and add the vanilla extract.
Beat until creamy, then pour into a buttered pan.
Set and cut
Cool and 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.
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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Cocoa + vanillatop 4% of all pairsSmell alikemoderateCooked together357 recipes
Shared aroma: sotolon (curry, maple).
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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Milk + cocoatop 10% of all pairsSmell alikemoderateCooked 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
- Dissolves into the milk and cooks down to form the fudge's sweet, firm body.
- Milk
- Adds moisture and milk solids that give the fudge a soft, creamy texture.
- Cocoa or chocolate
- Provides the chocolate flavour and deep colour of the fudge.
- Butter
- Adds fat that makes the fudge smooth and rich in texture.
The step that matters
Boil for 12 minutes, stirring occasionally. Sugar syrup can scorch on the bottom of the pan if not stirred, and the boiling time controls how much water evaporates. This sets how firm the fudge becomes as it cools.
Swap the cocoa
How well each one fits the dish's main ingredients (butter, milk, sugar, vanilla):
- Almondfits about as well
- Cocoathe original
- Chestnutfits about as well
- Hazelnutfits less well
Fit is the average pairing score against butter, milk, sugar, 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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