Why it works: Cocoa and coffee work together. They rank in the top 3% of all ingredient pairs, and cooks put them together in 91 recipes. Both carry sotolon, which smells curry, maple. The science ↓
Brown Icing
Ingredients
Directions
Stir together Karo Syrup, confectioner's sugar, and cocoa.
Moisten the mixture with cold, strong coffee until desired consistency.
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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Cocoa + coffeetop 3% of all pairsSmell alikemoderateCooked together91 recipes
Shared aroma: sotolon (curry, maple).
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Syrup + sugartop 6% of all pairsSmell alikestrongCooked together5,842 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Syrup + coffeetop 15% of all pairsSmell alikelowCooked together318 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + coffeetop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + cocoatop 27% of all pairsSmell alikelowCooked together956 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Karo syrup
- Adds sweetness and a smooth, glossy body that keeps the icing from drying out.
- Confectioner's sugar
- Provides bulk and sweetness, and sets the icing's thickness as it hydrates.
- Cocoa
- Supplies the brown colour and chocolate flavour.
- Cold, strong coffee
- Thins the mixture to a spreadable consistency and deepens the chocolate aroma.
The step that matters
Moisten the mixture with coffee gradually. Confectioner's sugar absorbs liquid unevenly, so adding coffee a little at a time and stopping at the desired consistency prevents an icing that is too thin or too stiff to spread.
Swap the cocoa
How well each one fits the dish's main ingredients (syrup, sugar, coffee):
- Hazelnutfits better
- Cocoathe original
- Chestnutfits about as well
- Nutsfits about as well
Fit is the average pairing score against syrup, sugar, coffee. 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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