Why it works: Beef and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,092 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beefsteak Smothered in Onions
Ingredients
Directions
Prepare
Broil or pan-broil the steak as usual.
Peel and slice the onions into rings.
Melt the butter in a frying pan over medium heat.
Cook the onions
Add the onions and cook slowly, uncovered, until well browned.
Sprinkle the onions with salt, pepper, and sugar.
Serve
Place the steak on a hot platter and top with the onions, pouring any remaining butter over the 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.
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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Beef + buttertop 16% of all pairsSmell alikemoderateCooked together10,847 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef steak
- Provides the main protein; browns on the surface when broiled or pan-broiled.
- Onions
- Soften and brown slowly, becoming sweet and savory as their sugars caramelize.
- Butter
- Conducts heat to the onions and carries flavor, aiding browning and richness.
- Sugar
- Speeds browning and adds sweetness that deepens the caramelized flavor of the onions.
The step that matters
Cooking the onions slowly until well browned. Low, steady heat lets the onions' natural sugars caramelize gradually. Rushing with high heat scorches the sugars before the onions turn sweet and deeply colored, leaving a bitter taste.
Swap the onion
How well each one fits the dish's main ingredients (beef, butter, pepper, sugar):
- Capsicumfits better
- Potatofits better
- Carrotfits about as well
- Onionthe original
Fit is the average pairing score against beef, butter, pepper, sugar. 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.
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