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 ↓
Roast Beef
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the beef
Preheat the oven to 400°F (200°C).
Place the beef on a wire rack in a roasting pan.
Dust the beef with flour without seasoning.
Roast
Roast for 1 hour and 15 minutes to 1 hour and 30 minutes, basting frequently.
Add peeled potatoes to the pan.
Sprinkle the potatoes with salt and turn them while basting.
After 1 hour, turn the beef to ensure even browning.
When done, the beef should be a rich dark mahogany color.
Make the sauce and serve
Transfer the beef to a hot dish.
Arrange the potatoes around the beef.
Pour off excess fat from the pan.
Add 1 cup of boiling water.
Scrape the pan to dissolve any stuck bits.
Add salt and pepper.
Boil for 2-3 minutes until rich.
Serve the beef in a sauceboat.
Garnish the beef with fine salt, parsley, and freshly 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.
Photo for illustrative purposes only · Contact us to use it
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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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + horseradishtop 6% of all pairsSmell alikestrongCooked together562 recipes
Shared aroma: coumarin (sweet, hay).
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Potato + horseradishtop 6% of all pairsSmell alikemoderateCooked together171 recipes
Shared aroma: coumarin (sweet, hay).
-
Beef + potatotop 8% of all pairsSmell alikemoderateCooked together2,052 recipes
Shared aroma: sotolon (curry, maple).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ribs of beef
- Provides the main roast, cooking through while the outside browns and develops flavour.
- Flour
- Dusted on the surface, it helps the outside brown and form a crust.
- Potatoes
- Roast alongside the beef in its drippings, absorbing fat and browning at the edges.
The step that matters
Turning and basting the beef. Frequent basting and turning keep the surface moist and promote even browning, so the outside does not dry out or scorch unevenly while the inside cooks.
Swap the potato
The recipe marks potato as optional. How well each one fits the dish's main ingredients (beef, flour, pepper, parsley, horseradish):
- Shallotfits better
- Turnipfits better
- Chivefits better
- Potatothe original
Fit is the average pairing score against beef, flour, pepper, parsley, 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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