Why it works: Sugar and coffee are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 4,344 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Coffee Icing
Ingredients
Directions
Make the syrup
Melt the sugar in a saucepan and boil until it forms a string.
Set the saucepan in a dish of cold water until it begins to crystallize around the edges.
Finish and spread
Work in the coffee, mixing and blending until combined.
When it granulates, spread it on the cake.
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 + coffeetop 17% of all pairsSmell alikelowCooked together4,344 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
- Sugar
- Forms the syrup base and, as it cools and recrystallizes, gives the icing its body and sweetness.
- Coffee
- Adds coffee flavor and liquid that loosens the cooled sugar into a spreadable icing.
The step that matters
Cooling until it begins to crystallize. Sugar syrup forms fine crystals only when it cools to the right point while being worked. If it is left too long it sets hard, and if it is spread too early it stays runny and does not granulate into a smooth icing.
“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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