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Marrow Balls for Soup

Marrow balls are small meatballs made from raw marrow, egg, seasonings, and crumbs, boiled in soup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Marrow Balls for Soup

Ingredients

Directions

Prepare the dough

  1. Cream the raw marrow in a bowl.

  2. Add the whole egg and mix well.

  3. Season with salt, pepper, paprika, nutmeg, and parsley.

  4. Stir in enough cracker crumbs or matzo meal to form small balls the size of marbles.

Cook

  1. Bring soup to a slow boil and drop the balls into it.

  2. Boil for 10 minutes.

  3. Test one ball in boiling water; if it falls apart, add more crumbs or meal.

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. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  2. Nutmeg + parsleytop 3% of all pairs
    Smell alikestrong
    Cooked together5,062 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Pepper + nutmegtop 7% of all pairs
    Smell alikestrong
    Cooked together13,015 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  4. Nutmeg + nutstop 12% of all pairs
    Smell alikemoderate
    Cooked together239 recipes

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

  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

Raw marrow
Provides richness and fat that gives the balls a moist, savoury body.
Whole egg
Binds the marrow and crumbs so the balls hold their shape while cooking.
Cracker crumbs or matzo meal
Absorbs moisture and gives the mixture enough body to form firm balls.

The step that matters

Testing one ball before dropping in the rest. If the mixture is too loose, the balls break apart in the simmering soup. A test ball shows whether more crumbs are needed, since the binding depends on how much moisture the marrow and egg release.

Swap the nuts

The recipe marks nuts as optional. How well each one fits the dish's main ingredients (egg, pepper, nutmeg, parsley):

  1. Walnutfits better
  2. Chickpeafits better
  3. Chestnutfits better
  4. Nutsthe original

Fit is the average pairing score against egg, pepper, nutmeg, parsley. 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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