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Chocolate Filling

A sweet chocolate filling made from sugar, sweet milk, shaved chocolate, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Chocolate Filling

Ingredients

Directions

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

  2. Boil the mixture for about 3 minutes, stirring constantly.

  3. Remove from heat and stir until nearly cold.

  4. If the mixture is too thick, add a few drops of milk while stirring.

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

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

  2. Chocolate + chestnuttop 11% of all pairs
    Smell alikemoderate
    Cooked together77 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Sugar + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together15,404 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Milk + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together9,128 recipes

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

  5. Chocolate + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together10,543 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Sugar
Sweetens the filling and helps it set firm as it cools.
Shaved chocolate
Provides the chocolate flavor and body of the filling.
Sweet milk
Adds moisture and makes the filling smooth and spreadable.
Butter
Adds richness and a smooth, glossy texture.

The step that matters

Stirring while the mixture cools. Stirring as it cools keeps the sugar from forming large crystals, so the filling stays smooth rather than grainy. Stirring until nearly cold also lets it thicken evenly.

Swap the chestnut

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

  1. Almondfits better
  2. Cocoafits better
  3. Pecansfits better
  4. Chestnutthe original

Fit is the average pairing score against sugar, milk, chocolate, butter. 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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