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Dessert

Chocolate Sandwich

A chocolate filling spread on sponge cake or buttered white bread.

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 Sandwich

Ingredients

Directions

Make the chocolate mixture

  1. Melt the grated chocolate in a bowl.

  2. Whip in the hot cream.

  3. Add vanilla extract and confectioner's sugar to taste.

  4. Stir in the egg yolk until it thickens.

Finish and spread

  1. Beat the egg white to stiff peaks and fold it into the mixture.

  2. Spread the chocolate mixture on thin slices of sponge cake or buttered white bread.

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. Vanilla + sugartop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

  3. Cream + sugartop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  4. Chocolate + creamtop 11% of all pairs
    Smell alikemoderate
    Cooked together5,466 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

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

    Shared aroma: guaiacol (smoky, sweet).

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

Chocolate
Provides the main flavor and sets firm as it cools.
Hot cream
Melts and smooths the chocolate into a spreadable mixture with rich moisture.
Egg yolk
Thickens the mixture and adds richness through its emulsifying fats.
Egg white
Whipped to stiff peaks, it adds airiness and lightens the spread.

The step that matters

Folding in the beaten egg white. Whipped egg white traps air in its protein network. Folding gently, rather than stirring, keeps that air in the mixture so the spread 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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