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Chocolate Frappe

A chocolate syrup served over cracked ice and topped with whipped cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Cinnamon and vanilla match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 5,287 recipes. Both carry 4-methoxybenzaldehyde, which smells sweet, anise. The science ↓

Chocolate Frappe

Ingredients

Directions

Make the syrup

  1. Combine sugar, grated chocolate, and 1 cup of boiling water in a saucepan. Stir until a shiny paste forms, stirring constantly to prevent burning.

  2. Add 3 cups of boiling water and boil until a thick syrup forms, stirring constantly. Allow to cool.

  3. Once cool, stir in cinnamon and vanilla.

Assemble and serve

  1. Beat the heavy cream until light.

  2. Pour the chocolate syrup into tall glasses filled with cracked ice.

  3. Top each glass with a spoonful of whipped cream.

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. Cinnamon + vanillatop 1% of all pairs
    Smell alikestrong
    Cooked together5,287 recipes

    Shared aroma: 4-methoxybenzaldehyde (sweet, anise).

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

    Shared aroma: sotolon (curry, maple).

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

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

  4. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  5. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 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

Granulated sugar
Dissolves into the boiling water to form the thick, sweet syrup base.
Grated chocolate
Melts into the water to give the syrup its chocolate flavor and body.
Heavy cream
Whipped to a light topping that adds richness and a soft texture.

The step that matters

Stirring the paste and syrup constantly. Sugar and chocolate can scorch on the bottom of the pan, giving a burnt taste. Constant stirring keeps heat even and lets the sugar dissolve smoothly into a glossy, thick syrup.

“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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