Why it works: Turnip and carrot 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 ↓
White Soup
Ingredients
Directions
Make the base
Melt the butter in a saucepan.
Stir in the flour and moisten with the stock.
Stir over the heat until it boils.
Simmer and finish
Clean and cut the vegetables into pieces, then add them and the peppercorns to the soup.
Let it simmer for 45 minutes.
Stir in the milk, season with salt, and strain out the vegetables.
The soup is then ready to 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 + carrottop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Turnip + flourtop 7% of all pairsSmell alikestrongCooked together2,874 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the stock into a smooth, lightly bodied soup base.
- Butter
- Carries the flour and adds rich flavour to the soup base.
- Milk
- Adds creaminess and softens the soup's flavour.
The step that matters
Stir the flour and butter until the soup boils. Stirring keeps the flour evenly dispersed in the hot fat and liquid, so it thickens smoothly instead of forming lumps.
Swap the onion
How well each one fits the dish's main ingredients (turnip, butter, carrot, flour, milk):
- Leekfits better
- Parsnipfits better
- Arrowrootfits better
- Onionthe original
Fit is the average pairing score against turnip, butter, carrot, flour, milk. 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 white soup recipes
You might also like
Carrot Soup134 recipes
Turnip Soup43 recipes
Tomato Soup526 recipes
Brown Bread461 recipesThe 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.