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Dessert

One Egg Mocha Cake

A moist chocolate coffee cake made with one egg, chocolate, coffee, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 15 ingredients
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Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

One Egg Mocha Cake

Oven, in the book's wordsA fairly hot oven

Ingredients

Directions

The book says “a fairly hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the batter

  1. Cream the butter and sugar together.

  2. Add the yolk of the egg, milk, salt, vanilla, flour, cream of tartar, baking soda, and melted chocolate. Mix well.

  3. Fold in the beaten egg white.

Bake and fill

  1. Pour the batter into a greased pan.

  2. Bake in a fairly hot oven at 400°F (200°C) until done.

  3. Mix powdered sugar, butter, vanilla, cocoa, and strong coffee until smooth.

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. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

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

    Shared aroma: sotolon (curry, maple).

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

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

  4. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  5. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

Sugar and vanilla 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

Flour
Provides the structure that holds the cake's crumb together as it bakes.
Egg
Adds structure and richness, and the beaten white helps the cake rise and stay light.
Cream of tartar
Stabilizes the egg white foam and works with baking soda to help the cake rise.
Baking soda
Reacts with acidic ingredients to release gas, helping the cake rise.
Chocolate
Adds the main chocolate flavor and some fat, deepening color and richness.
Sugar
Sweetens the batter and helps tenderize the crumb and brown the surface.

The step that matters

Folding in the beaten egg white. Stirring too vigorously deflates the whipped egg white, losing the air that lifts the cake. Fold gently, just until no white streaks remain.

“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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