Why it works: Butter and milk 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 ↓
Raisin Fudge
Ingredients
Directions
Make the fudge
In a saucepan, combine sugar, butter, milk, and chocolate.
Cook over medium heat, stirring continually until bubbles break slowly.
Add walnuts and raisins, stirring until the mixture becomes stiff.
Pour the mixture into buttered pans.
Finish
Once cool, 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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Chocolate + walnuttop 10% of all pairsSmell alikemoderateCooked together1,548 recipes
Shared aroma: 3-ethyl-2,5-dimethylpyrazine (roasted, nutty).
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Walnut + raisintop 13% of all pairsSmell alikemoderateCooked together647 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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 the mixture cooks, forms the firm body of the fudge.
- Butter
- Adds fat for a smooth, tender texture and rich flavor.
- Milk
- Supplies moisture and creaminess to the sugar mixture.
- Chocolate
- Adds deep chocolate flavor and extra richness.
- Walnuts
- Add crunchy texture and a toasty, nutty flavor against the soft fudge.
- Seedless raisins
- Add chewy texture and concentrated sweetness throughout the fudge.
The step that matters
Stirring until stiff after adding the walnuts and raisins. As water evaporates the sugar concentration rises, so the fudge sets firm as it cools. Stir only until the mixture stiffens; undercooked fudge stays soft, and overcooking can make it grainy.
Swap the raisin
How well each one fits the dish's main ingredients (sugar, egg, butter, milk, chocolate, walnut):
- Vanillafits better
- Coconutfits better
- Figfits better
- Raisinthe original
Fit is the average pairing score against sugar, egg, butter, milk, chocolate, walnut. 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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