Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Gravy for Rump Steaks
Ingredients
Directions
Make the gravy
Pour the fat out of the pan.
Dredge the pan with flour and let it brown slightly.
Add the butter and mix it well with the flour in the pan.
Once browned, gradually mix in the boiling water until the sauce thickens to the consistency of cream.
Stir in the ketchup, pepper, and salt to taste.
Keep stirring until the sauce boils for 1-2 minutes.
Serve
Pour the gravy over the steaks through a sieve.
Garnish the steaks with parsley or scraped horseradish if desired.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + horseradishtop 6% of all pairsSmell alikestrongCooked together562 recipes
Shared aroma: coumarin (sweet, hay).
-
Flour + horseradishtop 10% of all pairsSmell alikestrongCooked together743 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Ketchup + horseradishtop 10% of all pairsSmell alikemoderateCooked together223 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Pepper + horseradishtop 11% of all pairsSmell alikemoderateCooked together2,646 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
- Flour
- Thickens the gravy as it cooks with the fat and liquid.
- Butter
- Adds richness and fat that blends with the flour to form the base.
- Ketchup
- Adds sweetness and acidity for a tangy, rounded flavour.
The step that matters
Keep stirring until the sauce boils for 1-2 minutes. Flour needs to reach a boil and cook for a short time to lose its raw starch taste and to reach full thickness. Stopping early leaves a pasty, floury gravy.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (butter, flour, ketchup, pepper, horseradish):
- Capersfits better
- Parsleythe original
- Turmericfits about as well
- Allspicefits about as well
Fit is the average pairing score against butter, flour, ketchup, pepper, horseradish. 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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