Why it works: Butter and cream 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
Dissolve and boil
Dissolve the sugar in cold water.
Boil without stirring until it breaks when dropped in cold water.
Finish and cut
Remove from heat and add lemon juice.
Pour into buttered pans to a thickness of ¼ inch.
When nearly cold, 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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Butter + creamtop 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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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).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Sugar
- Forms the candy's sweet base, and as it cooks it sets into a brittle texture.
- Butter
- Adds fat for richer flavor and a softer bite, and helps release the candy from pans.
- Cream of tartar
- Adds acidity that helps keep the sugar from crystallizing into grainy candy.
- Lemon extract
- Adds a bright citrus aroma to the candy.
The step that matters
Boil without stirring until it breaks in cold water. Sugar's texture depends on how much water has boiled off, so the cook must stop at the right point. Stopping too early leaves a sticky candy, while going too far makes it hard and bitter. Stirring can encourage sugar to crystallize, which makes the candy grainy.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, cream):
- Vanillafits better
- Strawberryfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, cream. 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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