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 ↓
Warmed-over Beef
Ingredients
Directions
Prepare
Cut the beef into small, thin slices.
Make the sauce
In a pan, melt the butter over medium heat.
Add the flour and cook until browned slightly.
Stir in the stock or gravy, Worcestershire sauce, and ketchup.
Season with salt and pepper.
Cook and serve
Add the beef and simmer for 15 minutes.
Serve on a hot platter, garnished with toast or small potatoes.
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).
-
Pepper + beeftop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 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
- Beef
- Provides the main protein and meaty flavour of the dish.
- Butter
- Carries flavour and enriches the sauce with fat.
- Flour
- Thickens the sauce as it cooks with the butter, and browns slightly for flavour.
- Stock or gravy
- Forms the liquid base of the sauce and adds savoury depth.
- Ketchup
- Adds sweetness and acidity to the sauce.
The step that matters
Add the flour and cook until browned slightly. Cooking flour in butter removes raw starch taste and builds a nutty, toasted flavour. Stopping too early leaves the sauce tasting floury, while overcooking can scorch it and make it bitter.
“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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