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Marrow Balls for Soup

Marrow balls are small, stiff mixtures of marrow, eggs, bread crumbs, salt, and nutmeg, boiled in soup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Beef and bread are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 4,032 recipes. Both carry 2-acetyl-1-pyrroline, which smells popcorn, roasted. The science ↓

Marrow Balls for Soup

Ingredients

Directions

Prepare the marrow

  1. Split the bones and remove the marrow.

  2. Cream the marrow in a bowl.

Shape the balls

  1. Add the beaten eggs, salt, and nutmeg to the marrow.

  2. Mix in enough grated stale bread crumbs to form a stiff mixture.

  3. Shape the mixture into balls the size of a walnut.

Cook

  1. Drop the balls into boiling soup and cook for 15 minutes.

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 + breadtop 13% of all pairs
    Smell alikemoderate
    Cooked together4,032 recipes

    Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).

  2. Egg + breadtop 13% of all pairs
    Smell alikemoderate
    Cooked together22,662 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

  3. Nutmeg + breadtop 14% of all pairs
    Smell alikemoderate
    Cooked together5,997 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  4. Beef + nutmegtop 16% of all pairs
    Smell alikemoderate
    Cooked together3,495 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Egg + nutmegtop 17% of all pairs
    Smell alikelow
    Cooked together24,744 recipes

    Shared aroma: acetic acid (sour, vinegar).

Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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

Beef marrow fat
Provides richness and moisture that gives the balls a tender, savoury body.
Eggs
Bind the mixture and set when heated, helping the balls hold their shape.
Stale bread crumbs
Absorb liquid and thicken the mixture so it can be shaped into firm balls.

The step that matters

Mixing in the bread crumbs. Adding crumbs until the mixture is stiff controls moisture. Too little leaves the balls loose and likely to break apart in the boiling soup.

Swap the nutmeg

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

  1. Nutmegthe original
  2. Parsleyfits about as well
  3. Pepperfits less well
  4. Tarragonfits less well

Fit is the average pairing score against beef, egg, bread. 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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