Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Toffee, Raspberry
Ingredients
Directions
Dissolve the sugar in the cold water.
Add the cream of tartar and bring to a boil.
Skim carefully and boil until it reaches the 'large crack' stage.
Remove from heat and stir in the cochineal and raspberry essence.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Raspberry + creamtop 16% of all pairsSmell alikelowCooked together1,332 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Sugar + raspberrytop 21% of all pairsSmell alikelowCooked together3,101 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sugar
- Forms the sweet, brittle toffee structure as it cooks to the crack stage.
- Cream of tartar
- Acidity that helps prevent sugar from crystallising, keeping the toffee smooth.
- Cochineal
- Adds the red colour to the toffee.
- Raspberry essence
- Adds raspberry aroma and flavour.
The step that matters
Boiling to the large crack stage. Sugar syrup must reach the correct temperature to set hard when cooled. Stopping early leaves a sticky toffee, while overcooking makes it bitter and burnt. Skimming removes impurities that can cause cloudiness or crystals.
Swap the raspberry
How well each one fits the dish's main ingredients (sugar, cream):
- Vanillafits better
- Strawberryfits about as well
- Raspberrythe original
- Raisinfits about as well
Fit is the average pairing score against sugar, 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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