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 coffee sugar, water, and molasses in a saucepan.
Boil the mixture until it reaches a hair stage, without stirring.
Add butter when the candy is nearly done.
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.
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Coffee + sugartop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Coffee + molassestop 18% of all pairsSmell alikelowCooked together640 recipes
Shared aroma: furaneol (caramel, strawberry).
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 the sugar that sets into the brittle candy structure.
- Molasses
- Adds depth of flavour and colour, and helps keep the candy from crystallising too quickly.
- Butter
- Adds richness and a tender, smooth texture to the finished candy.
The step that matters
Boiling to the hair stage without stirring. Sugar syrup must reach the right temperature to set correctly, so the candy neither stays sticky nor turns hard and grainy. Stirring can trigger crystallisation, which makes the texture gritty, so the mixture is left undisturbed 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Molasses Cookies96 recipes
Coffee Ice Cream91 recipes
Molasses Cake90 recipes
Coffee Custard27 recipes