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
Make the broth
Saw through the marrow bone and place it in a pot of water.
Bring to a boil and let it simmer for one hour.
In a separate pan, bring water to a boil.
Add the juice of the ripe orange.
Cook the eggs
Carefully drop the eggs into the boiling water and leave them until they float to the top.
Remove the eggs and place them in cold water until all are cooked.
Trim the rough edges off the eggs and add them to the tureen with the marrow bone.
Serve
Mix a little coarse sea salt into the soup, pour it into the tureen, and add pieces of bread.
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.
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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Orange + breadtop 19% of all pairsSmell alikemoderateCooked together1,084 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Orange + eggtop 31% of all pairsSmell alikelowCooked 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 fat and flavour into the water, giving the soup its rich body.
- Eggs
- Provide protein and body; poached in the broth they add substance and a soft texture.
- Ripe orange juice
- Adds acidity and a bright citrus note that balances the rich broth.
- Pieces of bread
- Soak up the broth, adding bulk and a soft, absorbent texture.
The step that matters
Cooking the eggs until they float. Eggs must be lowered gently into boiling water so the whites set around the yolks without breaking apart. Floating shows the eggs are sufficiently firm; leaving them too long makes the yolks chalky and rubbery.
Swap the orange
How well each one fits the dish's main ingredients (egg, bread):
- Datesfits better
- Pumpkinfits better
- Figfits better
- 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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