Why it works: Shallot and capers match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 405 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Beef Collops
Ingredients
Directions
Prepare
Cut the rump steak into small pieces.
Heat a frying pan and brown the steak pieces for 2-3 minutes.
Make the sauce
Transfer the browned steak to a stewpan and add the gravy.
In a bowl, rub the butter into the flour and add to the gravy.
Season with salt, pepper, shallot, pickled walnut, and capers.
Let the mixture simmer for about 10 minutes.
Serve
Serve hot in a covered 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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Shallot + caperstop 1% of all pairsSmell alikestrongCooked together405 recipes
Shared aroma: coumarin (sweet, hay).
-
Shallot + walnuttop 6% of all pairsSmell alikestrongCooked together440 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Flour + shallottop 6% of all pairsSmell alikestrongCooked together2,081 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Walnut + caperstop 8% of all pairsSmell alikestrongCooked together156 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rump steak
- Provides the tender meat that makes up the body of the dish.
- Butter
- Enriches the sauce with fat and adds a rich, smooth mouthfeel.
- Flour
- Combined with butter, it thickens the gravy into a smooth sauce.
- Gravy
- Forms the liquid base of the sauce, carrying the flavour of the dish.
- Capers
- Add a sharp, acidic bite that cuts through the richness of the sauce.
- Pickled walnut
- Adds a tangy, acidic flavour that contrasts with the savoury meat.
The step that matters
Rubbing butter into flour before adding to the gravy. Adding flour directly to hot liquid can form lumps, because starch granules clump before they hydrate. Coating the flour in fat first helps it disperse evenly, giving a smooth, well-thickened sauce.
Swap the walnut
How well each one fits the dish's main ingredients (butter, flour, pepper, shallot, capers):
- Lentilsfits better
- Black-eyed peafits better
- Chestnutfits better
- Walnutthe original
Fit is the average pairing score against butter, flour, pepper, shallot, capers. 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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