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Drink

Blackberry Soup

A sweetened cherry soup thickened with cornstarch, served with zwieback and optional beaten egg whites.

From an old cookbook · modernised transcription
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Why it works: Cinnamon and sugar are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 30,779 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓

Blackberry Soup

Ingredients

Directions

Make the soup

  1. Bring 2 quarts of water and 1 stick of cinnamon to a boil.

  2. Add the pitted cherries and simmer for 20 to 30 minutes.

  3. Sweeten with sugar to balance the tartness.

  4. Thicken the mixture with a little cornstarch.

Serve

  1. Cool the soup and serve with zwieback.

  2. For a special touch, top with beaten egg whites mixed with a little sugar.

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 + sugartop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

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

  3. Cinnamon + eggtop 28% of all pairs
    Smell alikelow
    Cooked together19,058 recipes

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

Cinnamon and sugar barely smell alike, yet cooks put them together in 30,779 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

Cherries
Provide the main fruit flavor and tartness that the soup is built around.
Sugar
Adds sweetness to balance the tartness of the cherries.
Cornstarch
Thickens the cooking liquid into a smooth, body-rich soup.
Beaten egg whites
Add a light, airy topping when optionally used for a special touch.

The step that matters

Thicken with cornstarch. Cornstarch must be cooked in hot liquid to swell and gelatinize, which thickens the soup. Adding it without enough heat or simmering leaves the soup thin or 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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