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 ↓
English Butter-scotch
Ingredients
Directions
Make the toffee
Dissolve the sugar in cold water.
Add the butter and cream of tartar.
Boil without stirring until it cracks when dropped into cold water.
Remove from heat.
Add lemon extract.
Set and mark
Pour into well-buttered tins.
When nearly cold, mark out in 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).
-
Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
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
- Granulated sugar
- Forms the base of the candy and sets hard as the syrup cools.
- Butter
- Adds richness and a smooth, tender texture to the candy.
- Cream of tartar
- Acidity that helps prevent sugar from crystallising, keeping the candy smooth.
The step that matters
Boil without stirring until it cracks when dropped into cold water. Stirring can trigger sugar crystals that make the candy grainy. The syrup must reach the hard-crack stage so it sets firm and brittle once cooled.
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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