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 ↓
Fried Onions
Ingredients
Directions
Peel and slice the onions evenly.
Fry them in a pan with hot butter until slightly browned.
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
- Provide the main body and sweetness as they cook down and brown.
- Butter
- Conducts heat into the onions and adds richness and browning flavor.
The step that matters
Frying the onions until slightly browned. Heat must be high enough to brown the onion surfaces without burning them. Slicing evenly lets the slices cook at the same rate, so thin pieces don't scorch while thick ones stay raw.
“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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