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 Beef and Onions
Ingredients
Directions
Prepare
Heat the slices of cold roast beef on a grill until thoroughly heated, browning slightly on each side.
Place the heated beef slices around a serving dish.
Put the fried onions in the center of the dish.
Make the gravy and serve
Make a gravy by mixing flour with beef stock in the frying pan, then pour it over the beef and onions.
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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Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Beef + flourtop 25% of all pairsSmell alikelowCooked together10,677 recipes
Shared aroma: isobutyraldehyde (malty, green).
Beef and flour barely smell alike, yet cooks put them together in 10,677 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
- Flour
- Thickens the stock into a gravy as it heats, giving body to the sauce.
- Beef stock
- Forms the liquid base of the gravy and adds savoury beef flavour.
- Fried onions
- Add sweetness and savoury depth from their browned surface.
Swap the onion
How well each one fits the dish's main ingredients (beef, flour):
- Chivefits better
- Arrowrootfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against beef, flour. 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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