Why it works: Molasses and sugar 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
Make the candy
Combine molasses, sugar, butter, and baking soda in a saucepan.
Boil the mixture until it becomes crisp when tested in water.
Set and cut
Pour the hot mixture into buttered pans.
Allow to cool slightly, then 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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Molasses + sugartop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Molasses + buttertop 30% of all pairsSmell alikelowCooked together8,123 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
- Molasses
- Provides dark color, deep flavor, and moisture that shapes the candy's chewy texture.
- Sugar
- Dissolves and hardens as it boils, giving the candy its sweetness and firm structure.
- Butter
- Adds fat that softens the candy's texture and gives it a rich flavor.
- Baking soda
- Reacts with the hot syrup to add a light, brittle texture.
The step that matters
Boiling to the crisp stage. Boiling must go far enough to reach the hard-crack stage so the candy sets crisp. Stopping early leaves it sticky, while overcooking can make it bitter or burnt.
“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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