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 ↓
Smothebed Onions
Ingredients
Directions
Prepare
Peel and halve the onions. Trim the ends and slice them finely.
Cook
In a saucepan, melt the butter and add the sliced onions.
Cover the saucepan and simmer on low heat, stirring occasionally, until lightly colored.
Drain off the butter and serve as needed.
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
- Slow cooking softens them and gradually develops their sweetness and mild browning.
- Butter
- Fat that carries heat evenly across the onions and adds richness to their flavor.
The step that matters
Simmering covered on low heat. Low, covered heat lets the onions soften and release their moisture slowly, so they turn lightly colored rather than scorching. Stirring occasionally spreads the heat and prevents sticking at the pan bottom.
“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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