Why it works: Tomato and rice match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 3,065 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Kidney Bean Stew
Ingredients
Directions
Prepare the beans
Wash the beans and soak them overnight in 2 quarts of cold water.
Cook the beans in the soaking water over low heat for about 2 hours, adding more water if necessary to keep them covered.
For added flavor, include the salt pork at the beginning of cooking.
Finish the stew
Add the chopped onion and canned tomatoes to the beans and cook for another 30 minutes.
Wash the rice and add it to the pot, cooking until tender.
Mix the flour with a little cold water and stir it in to thicken the stew.
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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Tomato + ricetop 6% of all pairsSmell alikestrongCooked together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + ricetop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + porktop 10% of all pairsSmell alikemoderateCooked together4,843 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
- Kidney beans
- Form the bulk of the stew and give it a creamy, starchy body as they cook.
- Flour
- Thickens the cooking liquid into a smooth, sauce-like stew when stirred in.
- Canned tomatoes
- Add acidity and moisture, building the stew's savory base.
- Rice
- Absorbs liquid as it cooks, adding body and making the stew more filling.
The step that matters
Stirring in the flour mixture. Flour must be mixed smoothly with cold water first; added dry or lumpy, it clumps and won't thicken evenly. Starch thickens the liquid only once it is heated, so the stew needs to be simmering while it is stirred.
Swap the kidney beans
How well each one fits the dish's main ingredients (flour, onion, tomato, rice, pork):
- Beansfits better
- Black-eyed peafits better
- Sesamefits better
- Kidney beansthe original
Fit is the average pairing score against flour, onion, tomato, rice, pork. 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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