Why it works: Butter and egg are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 118,967 recipes. Both carry decanal, which smells soap, orange peel. The science ↓
Coffee Butter
Ingredients
Directions
Make the butter
Cream the sugar and egg yolk for about 10 minutes.
Add coffee essence to taste and gradually mix in the softened butter.
Work until thoroughly mixed and smooth.
Chill until firm, then stir again.
Use
Use for decorating with a paper cornet or bag and forcer.
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 + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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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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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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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 mixture its smooth, spreadable body.
- Castor sugar
- Creaming with butter adds sweetness and helps give the mixture a light, smooth texture.
- Egg yolk
- Acts as an emulsifier that helps the butter and sugar combine into a smooth mixture.
The step that matters
Working the butter into the sugar and yolk. Butter must be softened and added gradually so it emulsifies smoothly; adding it too fast or cold can leave lumps or a greasy, separated texture.
“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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