Why it works: Onion and tomato are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 20,633 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Chili Con Carne
Ingredients
Directions
Make the chili
In a skillet, melt the butter over medium heat.
Add the chopped onions and fry until light brown.
Stir in the chopped round steak and cook until browned.
Add the kidney beans, tomatoes, salt, and chili powder.
Cook everything together for 15 minutes.
Serve
Serve with buttered crackers.
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 + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Kidney beans + tomatotop 12% of all pairsSmell alikemoderateCooked together821 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + kidney beanstop 15% of all pairsSmell alikemoderateCooked together1,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + tomatotop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Round steak
- Provides the meat base and browns to add savory flavor to the chili.
- Onions
- Soften and turn light brown, adding sweetness and aroma to the base.
- Kidney beans
- Add body and texture to the chili as they simmer with the other ingredients.
- Tomatoes
- Add moisture and acidity, forming the liquid that the chili cooks in.
- Butter
- Carries the heat and fat that softens the onions and helps the meat brown.
The step that matters
Browning the round steak. Meat that is crowded or steamed in liquid will gray instead of browning. Browning creates Maillard flavors that give the chili its savory depth, so the meat should be cooked until well colored before the beans and tomatoes go in.
Swap the kidney beans
How well each one fits the dish's main ingredients (butter, onion, tomato):
- Beansfits better
- Chickpeafits better
- Sesamefits better
- Kidney beansthe original
Fit is the average pairing score against butter, onion, tomato. 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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