Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beef Soup
Ingredients
Directions
Make the broth
Put beef in cold water.
Boil until tender.
Remove meat.
Cook the vegetables
Add potatoes, onions, cabbage, and tomatoes.
Cook until tender.
Drain vegetables.
Mash them finely.
Finish the soup
Brown flour in butter.
Add to the liquid.
Bring to a boil.
Season with salt and pepper.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cabbage + peppertop 5% of all pairsSmell alikemoderateCooked together4,081 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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
- Flour
- Browned in butter and stirred into the liquid, it thickens the soup.
- Butter
- Carries the browning of the flour, adding a nutty, toasted flavour.
- Potatoes
- Cook until tender and mash into the broth, adding body and starch to thicken it.
- Tomatoes
- Add acidity and sweetness, along with moisture, to the broth.
The step that matters
Brown flour in butter. Flour cooked in fat must be stirred constantly until it turns golden. Under-cooked flour tastes raw and pasty, while over-browned flour turns bitter and dark. Adding it to the hot liquid without lumps keeps the soup smooth.
Swap the cabbage
How well each one fits the dish's main ingredients (beef, potato, onion, tomato, flour, butter, pepper):
- Chivefits better
- Okrafits better
- Capsicumfits better
- Cabbagethe original
Fit is the average pairing score against beef, potato, onion, tomato, flour, butter, 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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