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Dessert

Chocolate Layer Cake

A chocolate cake with a cocoa filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Chocolate Layer 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.

Make the cake

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

  2. Cream together the sugar and butter.

  3. Add the flour, sweet milk, baking powder, eggs, and lemon flavoring; mix well.

  4. Pour the batter into a greased cake pan and bake until a toothpick comes out clean.

Make the filling

  1. For the filling, boil the cocoa powder, scant milk, sugar, and butter until it reaches the right consistency.

  2. Remove from heat and flavor with vanilla.

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: guaiacol (smoky, sweet).

  4. Flour + cocoa powdertop 13% of all pairs
    Smell alikemoderate
    Cooked together2,244 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

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

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Flour
Forms the structure that holds the cake together as it bakes.
Eggs
Add structure and richness, helping the batter set and bind.
Baking powder
Releases gas in the batter, making the cake rise and turn light.
Butter
Adds fat for tenderness and flavor in both the cake and the filling.
Cocoa powder
Supplies the chocolate flavor and deep color of the cake and filling.

The step that matters

Boil the filling to the right consistency. Cooking the cocoa, milk, sugar, and butter mixture until it reaches the right thickness matters because sugar concentration and evaporation control how firm the filling sets once cooled. Undercooked filling stays runny, while overcooked filling becomes stiff.

Swap the lemon

How well each one fits the dish's main ingredients (sugar, butter, flour, milk, egg, cocoa powder, chocolate):

  1. Vanillafits better
  2. Coconutfits better
  3. Raisinfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, butter, flour, milk, egg, cocoa powder, chocolate. 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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