Why it works: Sugar and molasses are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 9,225 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Butter Scotch
Ingredients
Directions
Combine brown sugar, butter, molasses, vinegar, and water in a saucepan.
Boil for 15 minutes.
Pour the mixture into a 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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Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Molasses + vinegartop 26% of all pairsSmell alikelowCooked together1,253 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Brown sugar
- Provides sweetness and the caramel flavor that defines butterscotch.
- Butter
- Adds fat for smooth texture and rich flavor.
- Molasses
- Adds deeper color and a robust, slightly bitter caramel note.
- Vinegar
- Adds a touch of acidity that balances the sweetness and helps prevent crystallization.
The step that matters
Boiling for 15 minutes. Sugar must reach the right concentration to set firm when cooled. Boiling too short leaves it soft and sticky, while boiling too long can make it hard or scorched. Watch the mixture closely while it boils.
“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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