Why it works: Turnip and leek match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,046 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Spring Soup Without Meat
Ingredients
Directions
Prepare
Cut the cauliflower into small pieces and set aside the florets.
Chop the tender part of the stalk into small pieces.
Prepare the rest of the vegetables and shred them finely.
Make the soup
Melt the butter in a large stewpan, add the shredded vegetables and cauliflower stalk, and cook without browning for 20 minutes.
Add the water, salt, and pepper, and cook gently until tender, about 1 hour.
Twenty minutes before serving, add the cauliflower florets.
Serve
Cut 2 or 3 slices of well-browned toast into small dice and place them in the serving tureen.
Adjust seasoning as necessary and serve.
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.
-
Turnip + leektop 1% of all pairsSmell alikestrongCooked together1,046 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Lettuce + turniptop 1% of all pairsSmell alikestrongCooked together526 recipes
Shared aroma: coumarin (sweet, hay).
-
Lettuce + leektop 1% of all pairsSmell alikestrongCooked together217 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Turnip + cauliflowertop 1% of all pairsSmell alikestrongCooked together286 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
- Butter
- Melted fat that softens the vegetables gently in the pan and carries flavour.
- Cauliflower
- Adds body and a mild flavour; the florets are added late so they stay tender.
- Leeks
- Add a mild onion-like sweetness and aroma as they cook slowly in butter.
- Celery
- Contributes aromatic flavour and a fresh, slightly savoury note to the broth.
- Cabbage
- Shredded and cooked until tender, it adds bulk, texture and a mild sweetness.
The step that matters
Cook the vegetables without browning. Sweating the shredded vegetables in butter over gentle heat softens them and builds flavour; browning would give a darker, more bitter taste than this light soup should have.
Swap the onion
How well each one fits the dish's main ingredients (lettuce, cabbage, carrot, turnip, leek, celery, cauliflower):
- Beetrootfits better
- Parsnipfits better
- Endivefits better
- Onionthe original
Fit is the average pairing score against lettuce, cabbage, carrot, turnip, leek, celery, cauliflower. 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.
More vegetable soup recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Brown Bread461 recipes
Carrot Soup134 recipes
Cream of Celery Soup113 recipes
White Bread80 recipes