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Marrow Bone Soup

A soup made from a marrow bone, water, coarse sea salt, orange juice, eggs, and bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Egg and bread are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 22,662 recipes. Both carry (e)-2-octenal, which smells fatty, green. The science ↓

Marrow Bone Soup

Ingredients

Directions

Prepare the marrow broth

  1. Saw through the marrow bone.

  2. Place the marrow bone in a pot of water and bring the water to a boil.

  3. Let it simmer for 1 hour.

Poach the eggs

  1. In a separate pan, bring water to a boil.

  2. Add a little coarse sea salt and the juice of one ripe orange to the water.

  3. Gently drop the eggs into the pan and cook until they float to the top.

  4. Transfer the eggs to cold water until all are removed from the hot water.

  5. Trim the rough edges off the eggs.

Assemble and serve

  1. Place the trimmed eggs in a tureen with the marrow bone.

  2. Add a little coarse sea salt to the soup.

  3. Pour the soup into the tureen.

  4. Add pieces of bread to the tureen.

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

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

  2. Orange + breadtop 19% of all pairs
    Smell alikemoderate
    Cooked together1,084 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  3. Orange + eggtop 31% of all pairs
    Smell alikelow
    Cooked together10,696 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Orange and egg barely smell alike, yet cooks put them together in 10,696 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

Marrow bone
Releases flavour and fat into the water during long simmering, giving the soup its richness.
Eggs
Provide protein and body; they set when cooked and add substance to the soup.
Bread
Soaks up the broth, adding softness and body to each serving.
Ripe orange juice
Adds acidity and brightness to the poaching water, lightly flavouring the eggs.

The step that matters

Cooking the eggs until they float. Eggs left too long in simmering water become rubbery and overset, while under-cooked whites stay runny. Watching for the float helps judge the set.

Swap the orange

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

  1. Datesfits better
  2. Pumpkinfits better
  3. Figfits better
  4. Orangethe original

Fit is the average pairing score against 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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