Why it works: Sage and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 5,388 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
To Roast a Leg of Pork
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the pork
Score the skin of the leg of pork in narrow strips, creating a diamond pattern.
Rub in the powdered sage.
Lift the skin at the knuckle.
Stuff the lifted skin with minced onion, sage, breadcrumbs, pepper, salt, and beaten egg yolk.
Fasten the skin down with a buttered string or skewers.
Make deep incisions in the large end of the leg.
Stuff the incisions with the filling, pressing it in firmly.
Roast and serve
Brush the skin with sweet oil to make it crisp and brown.
Roast the leg of pork at 400°F (200°C) for 3 to 4 hours.
Brush the roast occasionally with sweet oil or melted butter.
Skim the fat from the gravy.
Thicken the gravy with a little flour.
Serve the roast leg of pork with apple sauce, mashed potatoes, and mashed turnips.
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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Sage + peppertop 3% of all pairsSmell alikestrongCooked together5,388 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pork + sagetop 12% of all pairsSmell alikemoderateCooked together2,527 recipes
Shared aroma: 2-hexenal (green, leafy).
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Onion + sagetop 12% of all pairsSmell alikemoderateCooked together3,628 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Leg of pork
- Forms the main body of the roast, providing rich meat that stays moist during long roasting.
- Breadcrumbs
- Absorb juices and egg from the filling, giving it a soft, binding texture inside the meat.
- Beaten egg yolk
- Binds the stuffing together so it holds its shape while roasting.
- Onion
- Adds aromatic flavour and moisture to the stuffing as it cooks.
- Sweet oil or melted butter
- Brushed on the skin to encourage crisping and browning in the oven.
The step that matters
Brush the skin with sweet oil to make it crisp and brown. Pork skin needs a fat coating and dry heat to blister and crisp; without it the skin can stay soft and pale. Brushing during roasting helps the surface keep browning evenly.
Swap the onion
How well each one fits the dish's main ingredients (pork, sage, pepper, egg, butter):
- Capsicumfits better
- Potatofits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against pork, sage, pepper, egg, butter. 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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