Why it works: Turnip and parsnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 590 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
A Fish Soup
Ingredients
Directions
Make the broth
Clean and cut the codlings into pieces, reserving one piece for forcemeat.
In a stewpan, combine the fish, onion, celery, turnip, parsnip, sweet herbs, and anchovies.
Add 3 quarts of boiling water and stew for 2 hours.
Strain the mixture and add the lobster meat, essence of anchovy, white pepper, and salt.
Make the forcemeat balls
Make forcemeat balls with the reserved fish, bread crumbs, sweet herbs, butter, egg yolks, and shredded anchovy.
Finish and serve
Add the forcemeat balls and crust of French roll to the soup and simmer for 12 minutes.
Serve very hot.
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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Turnip + parsniptop 1% of all pairsSmell alikestrongCooked together590 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + turniptop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + parsniptop 3% of all pairsSmell alikestrongCooked together561 recipes
Shared aroma: myristicin (spice, warm).
-
Lobster + anchovytop 4% of all pairsSmell alikemoderateCooked together470 recipes
Shared aroma: octanal (fat, soap).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Codlings
- Provide the flaky white fish that gives the soup its main body and flavour.
- Lobster meat
- Adds sweet, delicate shellfish flavour and a little texture to the finished soup.
- Egg yolks
- Bind the forcemeat so the balls hold together and set firmly when simmered.
- Bread crumbs
- Absorb moisture and add body to the forcemeat, keeping the balls tender.
- Anchovies
- Add savoury depth and salty umami to the broth.
- Butter
- Adds richness and fat, making the forcemeat softer and more tender.
The step that matters
Simmering the forcemeat balls. Egg yolks in the forcemeat set when heated, so boiling too hard can make the balls rubbery or break them apart. A gentle simmer keeps them tender and intact.
Swap the white pepper
How well each one fits the dish's main ingredients (onion, celery, turnip, parsnip, meat, lobster, anchovy):
- Capersfits better
- Parsleyfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against onion, celery, turnip, parsnip, meat, lobster, anchovy. 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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