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Portable Soup

A beef soup thickened into a jelly, cut into squares, dried, and reconstituted in hot water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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

Oven, in the book's wordsA cool oven

Ingredients

Directions

Prepare the stock

  1. Remove fat and skin from the beef, break up the bones, and cut the meat into small pieces.

  2. Place all ingredients in a large pot with the cold water and cover tightly.

  3. Simmer for 12 to 14 hours, then strain the soup.

Reduce and set

  1. The next day, remove the fat and clear the jelly of any sediment.

  2. Boil gently without covering, stirring often until it thickens to a strong glue.

  3. Pour into broad tin pans and place in a cool oven.

  4. When it can hold the impression of a knife, score it into squares and hang the pans to dry.

Dry and store

  1. Once dry, break off the scored pieces and store in close boxes.

  2. Melt in hot water when ready to use.

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).

  2. Pepper + macetop 16% of all pairs
    Smell alikelow
    Cooked together12,257 recipes

    Shared aroma: myristicin (spice, warm).

  3. Beef + macetop 25% of all pairs
    Smell alikelow
    Cooked together2,969 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

Pepper and mace barely smell alike, yet cooks put them together in 12,257 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

Knuckle of beef
Provides gelatin-rich collagen from bones and connective tissue, which sets the broth into a firm jelly.
Fowls
Add extra body and savory flavor to the stock, supporting a richer, more gelatinous result.
Jamaica pepper
Adds warm, aromatic spice notes that flavor the long-simmered stock.
Mace
Contributes a delicate, warm aroma that complements the savory beef stock.

The step that matters

Boiling gently until it thickens to a strong glue. Boiling hard or covered can cloud the stock or scorch it on the bottom, and reducing too far makes it brittle. Gentle, uncovered simmering concentrates the gelatin gradually so the jelly sets firm but still melts cleanly later.

Swap the mace

How well each one fits the dish's main ingredients (beef, pepper):

  1. Rosemaryfits better
  2. Parsleyfits better
  3. Marjoramfits better
  4. Macethe original

Fit is the average pairing score against beef, pepper. 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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