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 ↓
Buttered Rice
Ingredients
Directions
Cook the rice
Add the rice to boiling water with salt and boil for 20 minutes until softened.
Drain the rice in a colander and place it in an open oven to dry.
Finish and serve
In a frying pan, heat the butter and add the grated onion, stirring until it sizzles.
Add the dried rice to the hot butter, toss lightly for 1 minute, and season with pepper and salt.
Serve in a deep dish.
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.
-
Rice + oniontop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Rice + peppertop 12% of all pairsSmell alikemoderateCooked together8,379 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Rice + buttertop 16% of all pairsSmell alikemoderateCooked together9,645 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Raw rice
- Forms the bulk of the dish; its starch softens during boiling to give the grains their body.
- Butter
- Adds fat and richness, coating the grains and carrying flavour as they are tossed.
- Grated onion
- Adds aroma and savoury flavour as it sizzles in the hot butter.
The step that matters
Drying the rice before tossing. Excess surface water would cool the hot butter and steam the grains instead of letting them coat and toss lightly. Draining well and drying in the oven helps the grains stay separate and absorb the butter.
Swap the onion
How well each one fits the dish's main ingredients (rice, butter, pepper):
- Capsicumfits better
- Potatofits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against rice, butter, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Rice Fritters84 recipes
Steamed Rice48 recipes
Rice Griddle Cakes28 recipes
Rice and Cheese Casserole23 recipes