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, Boiled
Ingredients
Directions
Peel and wash the onions.
Boil the onions in salted water until soft, about 30 minutes.
Change the water once when the onions are half cooked, if desired.
Remove the onions from the pot and pour drawn butter over them.
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 dish's main body, and their natural sugars turn mild and sweet as they cook.
- Drawn butter
- Adds richness and a silky fat coating that carries flavor across the cooked onions.
The step that matters
Boil the onions until soft. Onions are done when they are tender all the way through. Stopping too early leaves a firm, raw center, while boiling too long makes them mushy and waterlogged.
“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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