Why it works: Turnip and cabbage match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 897 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Vegetable Soup
Ingredients
Directions
Prepare the beef
Wash the beef shank in several changes of water and break the bone.
Make the soup
Place the shank in a large pot with cold water and boil steadily for one hour.
Add the butter beans, corn, turnip, cabbage, Irish potatoes, and onions.
Add the tomatoes one hour before serving.
Season with salt and pepper to taste.
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.
Photo for illustrative purposes only · Contact us to use it
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 + cabbagetop 2% of all pairsSmell alikestrongCooked together897 recipes
Shared aroma: coumarin (sweet, hay).
-
Beans + corntop 3% of all pairsSmell alikestrongCooked together1,211 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
-
Beans + turniptop 3% of all pairsSmell alikestrongCooked together400 recipes
Shared aroma: coumarin (sweet, hay).
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Corn + potatotop 5% of all pairsSmell alikestrongCooked together938 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef shank
- Gives the broth its meaty flavour and body as it simmers for an hour.
- Butter beans
- Add starch and a creamy texture that thickens the soup slightly.
- Irish potatoes
- Release starch as they cook, adding body and soaking up flavour.
- Tomatoes
- Add acidity and a fresh, bright flavour to the broth.
- Onions
- Build a sweet, savoury base as they soften in the broth.
The step that matters
Add the tomatoes one hour before serving. Adding tomatoes late keeps their acidity and fresh flavour from breaking down too far, while the beef has time to become tender in the simmering broth first.
Swap the cabbage
How well each one fits the dish's main ingredients (beef, butter, beans, corn, turnip, potato, onion):
- Chivefits better
- Leekfits better
- Okrafits better
- Cabbagethe original
Fit is the average pairing score against beef, butter, beans, corn, turnip, potato, onion. 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.

Tomato Soup526 recipes
Potato Croquettes255 recipes
Roast Beef211 recipes
Corn Fritters203 recipes