Skip to main content
Dessert

Filling for Chocolate Cake

A chocolate filling made by cooking flour, sugar, milk, chocolate, egg yolk, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
Jump to recipe ↓

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 ↓

Filling for Chocolate Cake

Ingredients

Directions

Make the custard base

  1. Mix flour and sugar in a bowl.

  2. Add hot milk.

  3. Cook over simmering water for 20 minutes, stirring frequently.

Add the chocolate and thicken

  1. Melt chocolate over simmering water.

  2. Gradually add some of the milk mixture until it reaches a pourable consistency.

  3. Combine the chocolate mixture with the beaten egg yolk.

  4. Add the mixture to the remaining milk mixture.

  5. Cook over simmering water until thickened, stirring constantly.

Finish

  1. Allow to cool.

  2. Add vanilla for flavor.

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. Chocolate + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

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

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

  4. Flour + vanillatop 12% of all pairs
    Smell alikemoderate
    Cooked together19,241 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: guaiacol (smoky, sweet).

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
Thickens the filling as its starch swells when heated with the liquid.
Egg yolk
Sets and enriches the filling as its proteins coagulate during gentle cooking.
Chocolate
Provides the chocolate flavor and richness that defines the filling.
Sugar
Adds sweetness and helps balance the bitterness of the chocolate.
Hot milk
Supplies the liquid that the flour hydrates to form a smooth, thick custard.

The step that matters

Stirring while the mixture thickens. Egg yolk can curdle or scramble if the mixture overheats or is not stirred. Constant stirring over gentle simmering water keeps the heat even so the custard thickens smoothly.

“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.

You might also like

Chocolate CreamChocolate Cream171 recipesVanilla Ice CreamVanilla Ice Cream108 recipesChocolate CookiesChocolate Cookies76 recipesChocolate FudgeChocolate Fudge55 recipes