Why it works: Onion and butter are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 42,912 recipes. Both carry decanal, which smells soap, orange peel. The science ↓
Onions Browned in Butter
Ingredients
Directions
Cook the onions
Combine sliced onions, coarse sea salt, and boiling water in a pot.
Cook covered until tender.
Drain the water (reserve for soup).
Brown the onions
Add butter to the onions and stir until melted.
Fry the onions until they are a delicate brown, moving the pot to prevent burning.
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 + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Form the bulk of the dish and brown to give sweetness and savory depth.
- Butter
- Adds fat that carries heat and promotes gentle browning with a rich flavor.
The step that matters
Fry the onions until a delicate brown. Once the water is drained, the onions can scorch quickly. Moving the pot spreads heat evenly, and the sugars caramelize into color and flavor rather than burning.
“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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