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 ↓
Cold Roast, Warmed
Ingredients
Directions
Prepare
Slice the cold roast beef into small, thin pieces.
In a frying pan, heat the butter or drippings over medium heat.
Chop the onion and fry until brown, then remove it from the pan.
Make the gravy and heat the beef
Add the meat gravy to the pan; if it's not thick enough, stir in a little flour.
Season with salt and pepper, then add the sliced meat.
Let the meat simmer for a few minutes until heated through.
Serve hot.
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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Beef + meattop 12% of all pairsSmell alikemoderateCooked together2,533 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold roast beef
- Provides the meat, which is gently reheated so it stays tender and warm.
- Meat gravy
- Adds moisture and savory flavor, coating the slices as they heat.
- Butter or drippings
- Adds fat to the pan for frying the onion and carrying flavor.
- Flour
- Thickens the gravy if it is not thick enough.
The step that matters
Let the meat simmer until heated through. Thin slices can toughen and dry out if overheated, so keep the heat gentle and stop once the meat is warmed through.
Swap the onion
How well each one fits the dish's main ingredients (beef, butter, meat, flour, pepper):
- Potatofits better
- Shallotfits about as well
- Capsicumfits about as well
- Onionthe original
Fit is the average pairing score against beef, butter, meat, flour, pepper. 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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