Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Fudge
Ingredients
Directions
Make the fudge
In a saucepan, combine granulated sugar, milk, and Baker's chocolate.
Cook over medium heat, stirring until the chocolate melts and the mixture comes to a boil.
Continue cooking until it hardens when tested in cold water.
Remove from heat and stir until thick.
Set
Pour onto buttered tins and let cool.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + chocolatetop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Chocolate + buttertop 16% of all pairsSmell alikemoderateCooked together10,543 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Granulated sugar
- Provides sweetness and, as it dissolves and cooks, forms the firm crystalline body of the fudge.
- Milk
- Supplies moisture and milk solids that give the fudge a softer, creamier texture.
- Baker's chocolate
- Provides the chocolate flavour and fat that make the fudge rich and dark.
- Butter
- Adds fat for a smoother mouthfeel and helps keep the fudge from sticking to the tins.
The step that matters
Cooking until it hardens in cold water. Sugar concentration determines firmness. Cooking too little leaves fudge soft and runny, while cooking too long makes it hard and grainy as sugar recrystallises. Stirring only after cooling helps keep crystals small.
“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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