Name: To Make a Rich Brown Gravy
Ingredients: 1 ounce butter; 1 medium onion, peeled and sliced; 1 thin slice of fat ham or bacon, rind removed; 1 pound rump fillet of beef; Salt, to taste; Pepper, to taste; ½ teaspoon sugar; A pinch of pounded allspice; Flour, for dredging; 1¼ cups boiling water; 2 tablespoons ketchup; 1 crust of bread, toasted brown; A few sprigs of winter savory, basil, and lemon thyme, tied in muslin

Why it works: Pepper and allspice match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 6,395 recipes. Both carry estragole, which smells anise, licorice. The science ↓

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.

Pepper + allspicetop 5% of all pairs

Smell alikestrong

Cooked together6,395 recipes

Shared aroma: estragole (anise, licorice).
Onion + beeftop 7% of all pairs

Smell alikemoderate

Cooked together17,092 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Beef + peppertop 10% of all pairs

Smell alikemoderate

Cooked together18,971 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Rump fillet of beef: Provides the meat that releases juices and flavour into the gravy during simmering.
Flour: Coats the beef so it browns and helps thicken the gravy.
Onion: Adds sweetness and savoury depth as it softens in the butter.
Butter: Carries the onion and meat flavours and promotes browning.
Ketchup: Adds acidity and tang to the liquid, rounding out the savoury flavour.
Toasted bread crust: Adds toasty, browned aroma and body to the gravy.

The step that matters

Browning the dredged beef. Flour-dusted meat must brown well on both sides before liquid goes in. Browning builds the Maillard flavours that give the gravy its colour and depth, while pale meat yields a flat, weak-tasting result.

Swap the allspice

How well each one fits the dish's main ingredients (butter, onion, ham, beef, pepper, sugar, flour):

Parsleyfits better
Garlicfits better
Thymefits better
Allspicethe original

Fit is the average pairing score against butter, onion, ham, beef, pepper, sugar, flour. 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.

To Make a Rich Brown Gravy