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Dessert

Chocolate Filling

A chocolate filling made from melted chocolate, egg whites, powdered sugar, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Chocolate and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 10,020 recipes. Both carry sotolon, which smells curry, maple. The science ↓

Chocolate Filling

Ingredients

Directions

Make the filling

  1. Melt the grated chocolate over boiling water.

  2. Beat the egg whites to a foam.

  3. Gradually add the powdered sugar while beating continuously until stiff.

  4. Slowly add the melted chocolate, continuing to beat.

Fill and finish

  1. Fill the cake with this mixture.

  2. Ice the top with chocolate icing, or mix in sugar and vanilla with the melted chocolate, omitting the eggs.

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. Chocolate + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

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

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

  3. Chocolate + sugartop 13% of all pairs
    Smell alikemoderate
    Cooked together15,404 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Egg + vanillatop 23% of all pairs
    Smell alikelow
    Cooked together27,347 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

Egg whites
Whipped into a foam, they trap air and give the filling its light, stable structure.
Powdered sugar
Dissolves easily into the whites, sweetening them and helping the foam stay stiff.
Grated chocolate
Provides the main flavor and, once cooled, firms up to give the filling body.

The step that matters

Slowly add the melted chocolate. Adding the melted chocolate slowly, while beating, lets it blend in without deflating the foam. If it is added in one go or is too hot, the whites can lose air and the filling turns loose and runny.

“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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