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Dessert

Chocolate Sponge

A light chocolate sponge cake with nuts, served with whipped or plain cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Gelatin and cream match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,628 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Chocolate Sponge

Ingredients

Directions

Prepare the chocolate and gelatin

  1. Grate the chocolate.

  2. Melt the grated chocolate over the stove.

  3. Dissolve the gelatin in about 2 tablespoons of cold water.

  4. Heat the gelatin mixture on the stove.

Make the batter

  1. Beat the powdered sugar and egg yolks together until creamy.

  2. Add the melted chocolate, chopped nuts, and dissolved gelatin to the egg yolk mixture.

  3. Beat the egg whites until stiff.

  4. Fold the stiff egg whites into the mixture immediately after adding the gelatin.

Serve

  1. Serve with whipped cream or plain cream.

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. Gelatin + creamtop 7% of all pairs
    Smell alikestrong
    Cooked together1,628 recipes

    Shared aroma: acetic acid (sour, vinegar).

  2. Sugar + gelatintop 7% of all pairs
    Smell alikemoderate
    Cooked together2,778 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

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

  4. Chocolate + nutstop 10% of all pairs
    Smell alikemoderate
    Cooked together440 recipes

    Shared aroma: furaneol (caramel, strawberry).

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

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

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

What each ingredient does

Eggs
Egg whites whipped to stiff peaks give the cake its light, airy structure.
German chocolate
Provides the chocolate flavor and richness of the cake.
Gelatin
Sets the mixture so the cake holds its shape when cooled.
Powdered sugar
Sweetens the batter and creams with the yolks to add body.

The step that matters

Fold the stiff egg whites into the mixture immediately after adding the gelatin.. Folding gently preserves the air whipped into the egg whites; gelatin begins to set as it cools, so waiting can leave the batter too stiff to fold evenly and lose volume.

Swap the nuts

How well each one fits the dish's main ingredients (sugar, egg, chocolate, gelatin, cream):

  1. Almondfits better
  2. Pistachiofits about as well
  3. Hazelnutfits about as well
  4. Nutsthe original

Fit is the average pairing score against sugar, egg, chocolate, gelatin, cream. Candidates are from the same food group and used in at least 100 recipes.

“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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