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Dessert

Chocolate Filling

A sweet chocolate filling made from sugar syrup, egg whites, grated chocolate, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Chocolate and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 10,020 recipes. Both carry sotolon, which smells curry, maple. The science ↓

Chocolate Filling

Ingredients

Directions

Make the syrup

  1. Combine 2 cups white sugar and ½ cup hot water in a pan.

  2. Boil until it forms a clear, thick syrup.

Finish the filling

  1. Pour the hot syrup over the 3 well-beaten egg whites while continuously beating.

  2. Stir in 1 cup grated chocolate and add vanilla extract to taste.

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

    Shared aroma: sotolon (curry, maple).

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

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

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

    Shared aroma: guaiacol (smoky, sweet).

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

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

  5. Egg + vanillatop 23% of all pairs
    Smell alikelow
    Cooked together27,347 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

White sugar
Dissolves into a syrup that sets the filling's sweetness and body.
Egg whites
Whipped with hot syrup to form a light, stable foam that gives structure.
Grated chocolate
Adds rich flavor and fat, and firms the filling as it cools.

The step that matters

Pouring the hot syrup into the egg whites. The syrup must be hot and poured in a thin stream while beating constantly. This cooks the egg white proteins gently and builds a stable foam; pouring too fast or letting the mixture stand can deflate it or leave it grainy.

“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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