Why it works: Beans and tomato match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 2,713 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
A Cheap Palatable Meat Soup
Ingredients
Directions
Prepare
Save all bones and trimmings from meat.
Store them in a cool place for several days.
Make the broth
In a kettle, combine bones, cold water, dry beans, and tomato (or barley).
Cook gently for 2 hours, then strain through a colander.
Finish the soup
Return the liquid to the kettle and add diced carrot, diced potatoes, sliced onion, salt, and soup powder.
In 15 minutes, beat the egg with flour and stir into the soup.
Let boil for 10 minutes 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.
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Beans + tomatotop 1% of all pairsSmell alikestrongCooked together2,713 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + potatotop 4% of all pairsSmell alikestrongCooked together3,107 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Beans + carrottop 4% of all pairsSmell alikestrongCooked together1,443 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Beans + potatotop 5% of all pairsSmell alikestrongCooked together655 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bones and trimmings
- Release flavor and body into the water as they simmer for hours.
- Dry beans
- Add starch and body, thickening the broth as they soften.
- Potatoes
- Release starch as they cook, giving the soup a fuller texture.
- Flour
- Thickens the soup as its starch swells in the hot liquid.
- Egg
- Binds the flour into a batter that sets into soft pieces and adds richness.
- Tomato
- Adds acidity and mellow sweetness to the broth.
The step that matters
Beating the egg and flour before stirring it in. Flour added to hot liquid clumps unless it is first beaten smooth with the egg. Starch that is evenly dispersed thickens the soup uniformly, while lumps stay raw and pasty.
Swap the onion
How well each one fits the dish's main ingredients (beans, tomato, carrot, potato, egg, flour):
- Okrafits better
- Spinachfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against beans, tomato, carrot, potato, egg, flour. 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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