Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Stewed Rump-steaks
Ingredients
Directions
Prepare the steaks
Ensure the rump steaks are thicker than for broiling and of uniform thickness.
Melt 1 ounce of butter in a stew-pan and add 2 onions.
Add the rump steaks and cook over low heat for 5 minutes, then turn and cook for another 5 minutes.
Stew
Boil 1 pint of button onions for 30 to 60 minutes.
Add the cooking liquid from the button onions to the steaks; if insufficient, add broth or boiling water to cover.
Add 12 black peppercorns and ¼ teaspoon coarse sea salt, then simmer gently for 1.5 hours.
Strain off about 1½ cups of the liquid for the sauce.
Make the sauce and serve
In a separate pan, melt 2 ounces of butter, then stir in enough flour to make a stiff paste.
Optionally, add 1 tablespoon of claret or port wine, 1 tablespoon of mushroom ketchup, ½ teaspoon salt, and ¼ teaspoon ground black pepper.
Gradually add the reserved liquid, bring to a boil, skim, and strain.
Serve the steaks with the button onions around the dish and pour the gravy over.
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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Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Port wine + mushroomtop 10% of all pairsSmell alikemoderateCooked together570 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rump steaks
- Form the main body of the dish, becoming tender through long, gentle simmering.
- Butter
- Adds richness and helps the onions and steaks brown lightly at the start.
- Flour
- Thickens the sauce into a smooth gravy when cooked with butter and liquid.
- Onions
- Add sweetness and aroma to the stewing liquid as they soften.
- Button onions
- Soften during boiling and add mild sweetness and body to the dish.
The step that matters
Gently simmering the steaks. A gentle simmer lets collagen in the tough rump break down slowly into tenderness. A rolling boil toughens the meat and makes it stringy, so keep the liquid at a bare simmer for the full time.
Swap the onion
How well each one fits the dish's main ingredients (butter, sauce, flour, port wine, mushroom, ketchup, pepper):
- Shallotfits better
- Capsicumfits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against butter, sauce, flour, port wine, mushroom, ketchup, 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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