Why it works: Onion and potato 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 ↓
Mock Chile Con Carne Soup
Ingredients
Directions
In a large pot, combine ground beef, suet, and plenty of water.
Add the can of tomatoes, chopped onions, kidney beans, and diced potatoes.
Cook the soup until the ingredients are tender.
Stir in the ketchup, bay leaf, cloves, and red pepper.
Simmer for a few more minutes before serving.
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Tomato + potatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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
- Ground beef
- Provides the main meat flavor and body of the soup.
- Kidney beans
- Add substance and a firm, starchy texture to the soup.
- Potatoes
- Soften during cooking and thicken the soup slightly with their starch.
- Tomatoes
- Add liquid, acidity and savory flavor to the broth.
- Ketchup
- Adds sweetness and tang that balances the acidity of the tomatoes.
The step that matters
Simmer until the potatoes are tender before adding the ketchup and spices. Potatoes need sustained heat in liquid to soften fully, and the record does not give a time for this stage, so cooking until tender is the cue to watch. Adding the ketchup and spices afterward keeps their flavors fresh rather than cooked down.
Swap the kidney beans
How well each one fits the dish's main ingredients (beef, tomato, onion, potato, ketchup, clove, pepper):
- Beansfits better
- Chickpeafits better
- Sesamefits better
- Kidney beansthe original
Fit is the average pairing score against beef, tomato, onion, potato, ketchup, clove, 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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