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Dessert

Chocolate Filling for Cake

A chocolate filling made by boiling milk, sugar, and chocolate, then adding lemon extract.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Chocolate Filling for Cake

Ingredients

Directions

  1. Boil sweet milk, sugar, and chocolate together until thick.

  2. Stir in lemon extract and mix well.

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. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

    Shared aroma: 2-nonenal (fatty, green).

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Sweet milk
Provides the liquid that dissolves the sugar and melts the chocolate into a smooth base.
Sugar
Adds sweetness and, as it dissolves and the mixture thickens, helps give the filling body.
Sweet chocolate
Supplies the chocolate flavour and, as it melts into the hot milk, thickens the filling.
Lemon extract
Adds a bright aroma that contrasts with the rich chocolate.

The step that matters

Boil until thick. Cooking the milk, sugar and chocolate together lets the mixture thicken as it cooks down. Stopping too early leaves a runny filling, while cooking too long can make it stiff once it cools.

Swap the lemon

How well each one fits the dish's main ingredients (milk, sugar, chocolate):

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

Fit is the average pairing score against milk, sugar, 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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