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 ↓
Mocha Frosting
Ingredients
Directions
Cream the butter in a mixing bowl until smooth.
Gradually beat in the confectioners' sugar until well combined.
Add strong black coffee drop by drop, mixing until the desired flavor is achieved.
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).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + coffeetop 23% of all pairsSmell alikemoderateCooked together2,442 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Provides fat and richness, giving the frosting a smooth, creamy body.
- Confectioners' sugar
- Adds sweetness and bulk, thickening the butter into a spreadable frosting.
- Strong black coffee
- Supplies the coffee flavor that gives the frosting its mocha character, added in small amounts.
The step that matters
Adding the coffee. Coffee is a liquid, and too much at once can loosen the butter and sugar mixture into a runny frosting. Adding it drop by drop lets you stop once the flavor is right while keeping the texture firm enough to spread.
“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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