Why it works: Rice and onion are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 10,433 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Risotto
Ingredients
Directions
Prepare
Slice and fry the onions in a little fat until brown.
Add 2 pints of water and the rice to the pan.
Cook for about an hour.
Finish and serve
Stir in the grated cheese before serving.
Optionally, add tomatoes when in season.
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 + oniontop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Rice + cheesetop 14% of all pairsSmell alikemoderateCooked together942 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Cheese + oniontop 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
- Rice
- Absorbs the water and cooking liquid, becoming tender and giving the risotto its body.
- Cheese
- Melts into the hot rice, adding richness and a savoury, creamy texture.
- Onions
- Frying until brown builds sweetness and savoury depth as the base flavour.
Swap the onion
How well each one fits the dish's main ingredients (rice, cheese):
- Tomatofits better
- Mustardfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against rice, 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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