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 ↓
A Perfect Caramel
Ingredients
Directions
Make the caramel
Combine molasses, sugar, milk, butter, salt, and chocolate in a saucepan.
Boil the mixture for about 30 minutes, or until it hardens when dropped in cold water.
Set and cut
Pour the mixture onto buttered tins.
As it cools, cut into small 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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Molasses + sugartop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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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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Butter + chocolatetop 16% of all pairsSmell alikemoderateCooked together10,543 recipes
Shared aroma: delta-decalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Molasses
- Adds deep sweetness, dark color, and a rich, slightly bitter flavor.
- Sugar
- Adds sweetness and hardens as the mixture cooks and cools.
- Milk
- Adds creaminess and milk solids that soften the texture and mellow the sweetness.
- Butter
- Adds fat for richness and a smooth, tender bite.
- Chocolate
- Adds chocolate flavor and fat, and helps the mixture set firm as it cools.
The step that matters
Boil until it hardens in cold water. Sugar sets firm as its water evaporates and its concentration rises. Stopping too early leaves the candy soft and sticky, while cooking too long makes it brittle and can scorch the molasses and milk solids.
“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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