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Portable Soup

A dried gelatin made from boiled meat broth, seasoned with salt and pepper, cut into squares after cooling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Beef and pepper are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 18,971 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Portable Soup

Ingredients

Directions

Make the broth

  1. Strain the liquor from boiled meat and bones into a stew pan.

  2. Boil briskly, adding salt and plenty of pepper.

  3. Leave the stew pan uncovered and watch closely to prevent burning.

Set and dry

  1. Drop a little on a cold plate; when it thickens to a jelly consistency, pour it onto platters, no thicker than ¾ inch.

  2. Once cold, cut into 3-inch squares and set them in the sun to dry, turning frequently.

  3. When completely dry, layer the pieces in an earthen vessel with white paper between each layer.

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. Beef + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together18,971 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

What each ingredient does

Liquor from boiled beef, veal, or fowl
Provides the gelatin-rich base that thickens into a jelly as it reduces and cools.
Black pepper
Adds sharp, aromatic heat to the broth.

The step that matters

Judging the jelly consistency. Boiling uncovered concentrates the liquid and gelatin, and it can scorch if left unattended. The cold-plate test shows when it will set firmly. Pouring too thick makes the jelly hard to dry evenly.

“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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