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Dessert

Chocolate Frosting

A chocolate frosting made with egg whites, water, vanilla, chocolate, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Vanilla and chocolate 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 Frosting

Ingredients

Directions

Prepare

  1. Combine egg whites and cold water in a bowl. Stir well.

  2. Melt the chocolate in a saucepan.

Make the frosting

  1. Add the water to the melted chocolate, then gradually mix in sugar to achieve desired sweetness.

  2. Whip the egg mixture until stiff peaks form, then fold it into the chocolate mixture.

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. Vanilla + chocolatetop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

  2. Vanilla + sugartop 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).

Vanilla and sugar 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 that gives the frosting its light, airy structure.
Chocolate
Provides the main chocolate flavour and richness of the frosting.
Sugar
Sweetens the frosting and helps stabilise the whipped egg foam.
Vanilla
Adds a rounded aroma that complements the chocolate.

The step that matters

Whipping the egg mixture to stiff peaks and folding it in. Egg whites trap air only up to a point. Under-whipping leaves the foam weak, while over-whipping makes it grainy and dry. Folding gently keeps the trapped air so the frosting stays light instead of deflating.

“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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