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 ↓
Hashed Beef, and Broiled Bones
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the beef and bones
Cut the fillet from the inside of a sirloin roast into small pieces.
Cut the bones into neat pieces, score them, and season with salt and pepper.
Place the bones in a tart pan and drizzle with oiled butter.
Warm the bones in a 400°F (200°C) oven.
Brown the bones on a grill.
Make the sauce
In a stewpan, combine the meat trimmings, bones, sliced onions, a splash of vinegar, and beef stock.
Simmer on low heat for at least 1 hour.
Strain the mixture and skim off the fat.
Melt butter in a stewpan and add flour to the melted butter.
Stir for 1-2 minutes.
Gradually add the strained liquid and stir until it boils.
Add a little ketchup.
Finish and serve
Return the beef to the sauce and keep warm without boiling.
Season with additional salt and pepper if needed.
Serve with the broiled bones around 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).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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
- Sirloin fillet
- Provides the tender meat that is cooked gently in the sauce.
- Beef bones
- Release gelatin and flavour into the stock during long simmering, enriching the sauce.
- Onions
- Contribute sweetness and aroma as they soften into the sauce.
- Flour
- Thickens the melted butter and stock into a smooth, lightly bodied sauce.
- Beef stock
- Forms the liquid base of the sauce, carrying the beef flavour.
- Butter
- Adds richness and fat, and forms the roux with the flour.
The step that matters
Adding the strained liquid to the roux. Adding liquid gradually while stirring keeps the flour dispersed, preventing lumps and giving a smooth, evenly thickened sauce.
Swap the onion
How well each one fits the dish's main ingredients (beef, pepper, butter, vinegar, flour, ketchup):
- Capsicumfits better
- Shallotfits about as well
- Horseradishfits about as well
- Onionthe original
Fit is the average pairing score against beef, pepper, butter, vinegar, flour, ketchup. 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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