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Dessert

Puff Cake

A light cake with a custard filling, topped optionally with chocolate icing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Sugar and chocolate are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 15,404 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓

Puff Cake

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the batter

  1. Preheat the oven to 350°F (175°C).

  2. In a bowl, mix sugar, flour, eggs, cold water, baking powder, and salt until smooth.

  3. Pour the batter into sponge cake pans and bake until golden.

Make the custard

  1. For the filling, combine milk, cornstarch, egg, and salt in a saucepan.

  2. Cook over medium heat, stirring until thickened like custard.

Assemble and finish

  1. Once the cakes are cool, split them open and fill with the custard paste.

  2. Ice with chocolate icing if desired.

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 + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together15,404 recipes

    Shared aroma: guaiacol (smoky, sweet).

  2. Milk + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together9,128 recipes

    Shared aroma: gamma-nonanolactone (coconut, sweet).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  5. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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

Eggs
Provide structure and lift in the batter, and thicken the custard as they set.
Flour
Forms the structure of the sponge cake once the batter sets in the oven.
Sugar
Sweetens the cake and helps it brown during baking.
Baking powder
Releases gas in the batter, helping the cakes rise and stay light.
Milk
Provides the liquid base of the custard filling.
Cornstarch
Thickens the milk mixture into a custard-like filling as it heats.

The step that matters

Cooking the custard filling. Cornstarch thickens only when the mixture reaches a simmer and is stirred constantly. Heating too fast or without stirring can scorch the milk or leave lumps, and the egg can curdle if it overheats.

“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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