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 ↓
Mutton Ragout
Ingredients
Directions
Make the sauce
Melt and brown the butter in a pan.
Add the flour and stir until smooth and brown.
Pour in the stock and cook until it thickens.
Cook the ragout
Add the chopped mutton and transfer to a double boiler.
Cook for 20 minutes.
Before serving, stir in the Worcestershire sauce and ketchup; season with salt and pepper as needed.
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 + 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 + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Mutton + peppertop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Cold mutton
- Provides the meat that becomes the body of the ragout.
- Butter
- Fat that browns with the flour, adding nutty flavour to the base.
- Flour
- Thickens the stock into a smooth sauce once cooked through.
- Stock
- Liquid that forms the sauce and carries flavour into the meat.
- Ketchup
- Adds sweetness and acidity to season the sauce.
The step that matters
Browning the flour in the butter. Flour that is cooked long enough in fat loses its raw taste and develops a toasted, savoury flavour, while stirring keeps it smooth without lumps when the stock goes in.
“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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