Why it works: Sugar and vinegar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 20,806 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Butter Scotch
Ingredients
Directions
Make the butterscotch
In a saucepan, combine the sugar, water, butter, vinegar, and nutmeg.
Boil the mixture until it thickens.
Pour the thickened mixture onto a buttered plate.
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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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + nutmegtop 16% of all pairsSmell alikemoderateCooked together24,377 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + nutmegtop 20% of all pairsSmell alikelowCooked together23,364 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
Sugar and nutmeg barely smell alike, yet cooks put them together in 23,364 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
- White sugar
- Provides the sweetness and, as it heats, the caramel flavour and firm set.
- Butter
- Adds fat for a rich, smooth texture and a buttery flavour.
- Vinegar
- Adds a small amount of acidity that helps keep the sugar smooth rather than grainy.
The step that matters
Boil the mixture until it thickens. Sugar sets firm as it cooks and loses water, so under-boiling leaves a soft, sticky candy while over-boiling can turn it bitter and hard. Watch for it thickening rather than relying on time alone.
Swap the nutmeg
How well each one fits the dish's main ingredients (sugar, butter, vinegar):
- Cinnamonfits better
- Tarragonfits better
- Peppermintfits about as well
- Nutmegthe original
Fit is the average pairing score against sugar, butter, vinegar. 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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