Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Oven Cooked Dinner Roast Beef Oven Dinner
Ingredients
Directions
Prepare
Wipe the roast with a cloth wrung from cold water.
Pare the potatoes, scrape the carrots, and peel the onions.
Place the vegetables in tightly covered cooking containers.
Season the potatoes with salt and pepper.
Season the carrots and onions with salt, pepper, fat, and nutmeg.
Pour 1 cup of boiling water over each vegetable and cover tightly.
Roast and bake
Preheat the oven to 500°F (260°C) and sear the roast thoroughly with both units on high.
Turn off the top unit and place the vegetables in the oven.
Set the oven temperature to 350°F (175°C).
Bake the roast for 15 minutes per pound for rare, 18 minutes for medium, or 20-22 minutes for well done.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + potatotop 4% of all pairsSmell alikestrongCooked together3,107 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + nutmegtop 6% of all pairsSmell alikestrongCooked together1,424 recipes
Shared aroma: myristicin (spice, warm).
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Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Standing prime rib roast
- Provides the main meat, whose fat and connective tissue add flavor and juiciness as it cooks.
- Potatoes
- Absorb moisture and savory flavor in the covered containers, becoming soft and tender.
- Carrots
- Add natural sweetness as their starches soften and their sugars develop during cooking.
- White onions
- Soften and turn sweet and mellow as they cook in the covered containers.
The step that matters
Searing the roast at 500°F. A very hot start browns the surface through the Maillard reaction, building flavor and color. Searing too briefly or at too low a heat leaves the meat pale and less flavorful.
Swap the nutmeg
How well each one fits the dish's main ingredients (carrot, potato, onion, pepper):
- Parsleyfits better
- Celeryfits better
- Thymefits better
- Nutmegthe original
Fit is the average pairing score against carrot, potato, onion, pepper. 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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