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Dessert

Coffee Filling for Cake

A butter and powdered sugar filling flavored with coffee and vanilla.

From an old cookbook · modernised transcription
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Coffee Filling for Cake

Ingredients

Directions

  1. Cream the butter and powdered sugar together until smooth.

  2. Add the cold coffee and vanilla extract, then beat thoroughly until well combined.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Coffee + vanillatop 9% of all pairs
    Smell alikemoderate
    Cooked together1,391 recipes

    Shared aroma: sotolon (curry, maple).

  3. Butter + vanillatop 14% of all pairs
    Smell alikemoderate
    Cooked together20,050 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Sugar + coffeetop 17% of all pairs
    Smell alikelow
    Cooked together4,344 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Unsalted butter
Provides fat and creaminess, giving the filling a smooth, rich body.
Powdered sugar
Adds sweetness and, dissolved into the butter, gives the filling a smooth, stable texture.
Cold coffee
Adds liquid and a deep coffee flavour that complements the sweetness.

The step that matters

Beat until well combined. Creaming the butter fully with the sugar before adding liquid keeps the filling smooth. If the liquid goes in too early or the mix is not fully beaten, the sugar can stay gritty and the texture uneven.

“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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