Why it works: Mustard and horseradish match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Eoast Beef
Ingredients
Directions
The book says “a very hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare and roast
Rub the beef with dry mustard or garlic and dust with pepper.
Place the beef in an iron baking pan and add ½ cup of stock or water.
Bake in a very hot oven at 400°F (200°C) until the surface browns quickly.
After 15 minutes, baste the beef and continue to baste often without adding more water.
Cook for 15 minutes per pound for large roasts and 10 minutes per pound for small ones.
After 45 minutes, add a little coarse sea salt to the fat and continue basting.
Serve
Serve with horseradish sauce and garnish with roasted or browned potatoes.
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.
-
Mustard + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Horseradish + potatotop 6% of all pairsSmell alikemoderateCooked together171 recipes
Shared aroma: coumarin (sweet, hay).
-
Mustard + potatotop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + potatotop 8% of all pairsSmell alikemoderateCooked together2,052 recipes
Shared aroma: sotolon (curry, maple).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 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
- Loin or fore ribs of beef
- Forms the main meat; its fat bastes and flavours the roast as it cooks.
- Stock or water
- Adds moisture to the pan at the start, creating steam that keeps the beef from drying early.
- Dry mustard or garlic
- Adds pungent, savoury flavour to the meat's surface as it roasts.
The step that matters
Basting without adding more water. Spooning the rendered fat over the roast keeps the surface moist and promotes even browning. Adding more water would steam the meat instead of browning it.
Swap the potato
How well each one fits the dish's main ingredients (beef, mustard, pepper, horseradish, sauce):
- Shallotfits better
- Chivefits better
- Lettucefits better
- Potatothe original
Fit is the average pairing score against beef, mustard, pepper, horseradish, sauce. 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.
More roast beef recipes
You might also like
Potato Croquettes255 recipes
Beef Loaf175 recipes
Corned Beef87 recipes
Potato Rolls78 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.