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Chocolate Filling

A smooth chocolate filling made by melting chocolate with sugar, milk, and egg yolk.

From an old cookbook · modernised transcription
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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

Ingredients

Directions

  1. Melt the chocolate in a double boiler.

  2. Add the sugar and milk, and cook until smooth.

  3. Stir in the egg yolk and cook for 1 more minute.

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. Chocolate + milktop 13% of all pairs
    Smell alikemoderate
    Cooked together9,128 recipes

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

  3. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

  5. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

Sugar and milk barely smell alike, yet cooks put them together in 77,875 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

Sugar
Adds sweetness and body to the filling while helping it thicken as it cooks.
Chocolate
Provides the main flavor and richness of the filling.
Egg yolk
Thickens the filling as it cooks and adds richness.
Milk
Adds moisture and loosens the chocolate into a smooth mixture.

The step that matters

Stir in the egg yolk and cook for 1 more minute. Egg yolk thickens when heated, but if it gets too hot or cooks too long it can curdle or scramble, leaving the filling grainy. Keep the heat gentle and stir constantly.

“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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