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Dessert

Chocolate Filling

A sweet chocolate filling made by boiling brown sugar, grated chocolate, sweet milk, and butter, then flavored with vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Chocolate Filling

Ingredients

Directions

Make the filling

  1. In a saucepan, combine brown sugar, grated chocolate, sweet milk, and butter.

  2. Boil the mixture until it reaches a candy consistency, stirring occasionally.

  3. Remove from heat and add vanilla extract.

Cool and use

  1. Let the filling cool before spreading it on cakes.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

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

  5. Sugar + chocolatetop 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

Brown sugar
Adds sweetness and, as it cooks to candy consistency, helps set the filling.
Grated chocolate
Provides chocolate flavor and richness to the filling.
Sweet milk
Supplies liquid that dissolves the sugar and carries the chocolate through the boil.
Butter
Adds fat for smoothness and a rich mouthfeel in the cooked filling.

The step that matters

Boil to candy consistency. Sugar must reach the right temperature to set properly. Undercooked filling stays runny and will not hold on cakes, while overcooking makes it hard and grainy as it cools.

“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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