Why it works: Rice and tomato 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 ↓
Rice Spanish
Ingredients
Directions
Prepare
Heat the lard in a large skillet over medium heat.
Add the dry rice and stir until heated through but not browned.
Simmer
Dissolve the salt in the boiling water and add it to the skillet.
Stir in the chopped tomato, green pepper, and onion.
Cook until the rice is tender, adding more boiling water if it becomes too dry.
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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Rice + tomatotop 6% of all pairsSmell alikestrongCooked together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Rice + oniontop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Rice
- Forms the bulk of the dish and absorbs the cooking liquid as it softens.
- Tomato
- Adds moisture and a gently acidic, savoury flavour to the cooking liquid.
- Onion
- Adds aromatic sweetness and savoury depth as it softens in the fat.
- Lard
- Carries flavour and helps toast the rice lightly before the liquid goes in.
The step that matters
Adding the dry rice. Stirring the rice in hot fat coats the grains so they stay separate, while overheating can scorch them. Keeping the heat moderate and stirring until heated through, not browned, avoids a bitter taste.
Swap the onion
How well each one fits the dish's main ingredients (rice, tomato, pepper):
- Capsicumfits better
- Okrafits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against rice, tomato, 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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