Why it works: Syrup and sugar match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 5,842 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Butter Scotch
Ingredients
Directions
In a large pot, combine butter, syrup, and sugar.
Mix well and bring to a boil until the mixture becomes brittle.
Pour the hot mixture into a well-buttered pan to 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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Syrup + sugartop 6% of all pairsSmell alikestrongCooked together5,842 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Syrup + gingertop 16% of all pairsSmell alikelowCooked together950 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + gingertop 17% of all pairsSmell alikelowCooked together14,054 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + gingertop 26% of all pairsSmell alikemoderateCooked together7,152 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Sugar and ginger barely smell alike, yet cooks put them together in 14,054 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
- Butter
- Adds fat and richness, giving the candy a smooth, tender bite.
- Syrup
- Adds moisture and sweetness, and helps prevent the sugar from crystallising.
- Sugar
- Provides the sweetness and, when boiled, sets into a brittle, glassy candy.
The step that matters
Boiling until brittle. Sugar syrup sets according to its temperature, not its look. Boiling too little leaves a sticky candy, while boiling too long can scorch the sugar and give a bitter taste. Watching the mixture closely keeps the texture and flavour right.
Swap the ginger
How well each one fits the dish's main ingredients (butter, syrup, sugar):
- Cinnamonfits better
- Nutmegfits about as well
- Gingerthe original
- Clovefits less well
Fit is the average pairing score against butter, syrup, sugar. 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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