Why it works: Tomato and onion 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 Cheese
Ingredients
Directions
Prepare
Chop the chilies and tomatoes very fine.
Add salt to taste.
Cook and serve
Heat lard in a pan until very hot.
Add chopped onions and fry until translucent.
Add the chopped chilies and cheese.
Fry until the cheese is soft but not melted.
Serve immediately.
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 + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + cheesetop 13% of all pairsSmell alikemoderateCooked together2,896 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + cheesetop 16% of all pairsSmell alikemoderateCooked together4,849 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
- Onion
- Softens and turns sweeter as it fries until translucent.
- Lard
- Provides the fat for frying, carrying heat evenly through the pan.
- Chilies
- Adds heat and a sharp, fresh aroma to the dish.
- Tomatoes
- Contributes moisture and mild acidity once finely chopped.
- Cheese
- Softens into the mixture, giving a creamy, tender texture.
The step that matters
Fry the cheese until soft but not melted. Cheese turns oily and stringy when overheated, as its proteins tighten and fat separates. Gentle frying softens it while the pieces keep their shape and texture.
Swap the onion
How well each one fits the dish's main ingredients (tomato, cheese):
- Capsicumfits better
- Potatofits better
- Eggplantfits better
- Onionthe original
Fit is the average pairing score against tomato, cheese. 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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