Why it works: Carrot and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,002 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Bone-soup
Ingredients
Directions
Make the broth
Fill a dinner pot half full of bones and cover with cold water.
Bring the pot to a boil.
Simmer for three hours.
After one hour, add the sliced carrot and turnips.
After another hour, add 1 teaspoon of salt for each quart of water.
Finish and serve
Wash, peel and rinse the potatoes.
Set aside all but one or two potatoes.
Ten minutes before serving, place the reserved potatoes in the oven.
Strain the soup to remove bones.
Mash the reserved potatoes into the soup.
Return the vegetables to the soup.
Serve with or without the meat.
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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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + potatotop 4% of all pairsSmell alikestrongCooked together3,107 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Turnip + oniontop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bones
- Release collagen and flavour into the water, giving the broth body and richness.
- Potatoes
- Their starch thickens the broth when mashed into it.
- Carrot
- Adds sweetness and aroma to the broth as it simmers.
- Turnips
- Add earthy flavour and aroma to the broth as it simmers.
The step that matters
Mash the reserved potatoes into the soup. As potatoes break down, their starch dissolves into the hot liquid and thickens it. Mashing them in while the soup is hot lets the starch distribute evenly, giving a smooth, body-rich texture instead of lumps.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, carrot, turnip, potato, pepper):
- Parsnipfits better
- Leekfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against meat, carrot, turnip, potato, 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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