Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Butter Scotch
Ingredients
Directions
Cook the base
Combine sugar, cream of tartar (or glucose), and molasses in a large pot.
Cook over medium heat until the mixture reaches 270°F (132°C).
Finish and shape
Remove from heat and add butter in small pieces.
Carefully ignite the mixture for a moment.
Shake or stir to combine, then add a few drops of oil of lemon and mix thoroughly.
Pour the mixture onto a slab.
Let it cool slightly.
Mark into squares or oblong pieces.
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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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sugar
- Provides the bulk of the sweetness and forms the crystalline structure of the candy.
- Cream of tartar or glucose
- Acid or sugar syrup that helps prevent the sugar from recrystallizing into grainy candy.
- Molasses
- Adds deep flavor, color, and moisture that keeps the candy from becoming overly brittle.
- Butter
- Adds fat for richness and a smoother, more tender bite.
- Oil of lemon
- Adds a bright citrus aroma that balances the sweetness.
The step that matters
Cooking to 270°F (132°C). The final sugar concentration at this temperature determines whether the candy turns brittle or chewy as it cools. Stopping early leaves it soft and sticky, while overcooking risks scorching the molasses and sugar.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, cream, molasses, butter):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, cream, molasses, butter. 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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