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 ↓
Fillet of Beef with Mushroom Sauce
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Roast the beef
Roast the beef fillet in a 300°F (150°C) oven for about three hours.
Make the mushroom sauce
In a pan, brown the flour with the butter.
Add the browned flour mixture to the meat drippings along with the water, salt, and pepper.
Stir in the can of whole mushrooms.
Serve
Pour the sauce over the roast and serve.
Garnish with fresh parsley.
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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Beef + mushroomtop 4% of all pairsSmell alikemoderateCooked together3,232 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef fillet
- Is the main cooked protein and supplies the drippings that flavour the sauce.
- Flour
- Thickens the sauce as it cooks with the fat and drippings.
- Butter
- Fat that browns with the flour, adding a nutty, toasted flavour to the sauce.
- Whole mushrooms
- Add earthy flavour and a tender texture to the sauce.
The step that matters
Browning the flour with the butter. Cooking the flour in fat until golden removes its raw taste and builds flavour. Stopping early leaves the sauce pasty, while over-browning makes it bitter and dark.
Swap the parsley
How well each one fits the dish's main ingredients (beef, flour, butter, pepper, mushroom):
- Thymefits about as well
- Parsleythe original
- Marjoramfits about as well
- Turmericfits about as well
Fit is the average pairing score against beef, flour, butter, pepper, mushroom. 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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