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 ↓
Pot Roast of Beef
Ingredients
Directions
Place the piece of round beef in an iron kettle and cover with water.
Boil until most of the water has evaporated.
Remove the beef and pour the remaining liquid into a bowl.
Return the pot to the heat and add the butter.
Dredge the beef in flour and place it in the pot.
Brown the beef on all sides, turning often.
Add the reserved liquid and a little onion juice.
Thicken the sauce slightly and serve.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Beef + buttertop 16% of all pairsSmell alikemoderateCooked together10,847 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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
- Round beef
- Forms the main body of the dish, becoming tender as it cooks slowly in liquid.
- Flour
- Coats the beef so it browns well and helps thicken the sauce.
- Butter
- Adds fat for browning the beef and enriches the flavour of the sauce.
- Onion juice
- Adds savoury onion flavour to the sauce in small amounts.
The step that matters
Brown the beef on all sides, turning often. Browning the flour-coated surface creates deep, savoury flavours through the Maillard reaction. Turning often prevents scorching and gives an even crust, so the sauce built from the pan tastes rich rather than burnt.
Swap the onion
How well each one fits the dish's main ingredients (beef, egg, butter, flour):
- Chivefits better
- Leekfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against beef, egg, butter, 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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