Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Butterscotch
Ingredients
Directions
Boil the coffee sugar, sweet butter, cream of tartar, and enough water to dissolve the sugar.
Boil without stirring until it breaks easily when dropped into cold water.
Remove from heat and add lemon juice or extract.
Pour into well-greased pans and mark into squares when almost cold.
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 + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Coffee + creamtop 17% of all pairsSmell alikelowCooked together2,339 recipes
Shared aroma: 2-heptanol (bitter, floral).
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Coffee + sugartop 17% of all pairsSmell alikelowCooked together4,344 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
- Coffee sugar
- Provides the sweetness and, when boiled, the hard brittle structure of the candy.
- Sweet butter
- Adds fat for a rich flavour and a smoother, less brittle bite.
- Cream of tartar
- Acid that helps keep the sugar from crystallising, giving a smoother texture.
The step that matters
Boil without stirring until it breaks easily in cold water. Stirring while the sugar syrup boils can trigger crystallisation, leaving a grainy rather than smooth candy. Testing by dropping a little into cold water shows when the syrup has reached the brittle stage, so it sets firm instead of sticky.
Swap the lemon
How well each one fits the dish's main ingredients (coffee, sugar, butter, cream):
- Vanillafits better
- Strawberryfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against coffee, sugar, butter, cream. 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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