Why it works: Pork and onion are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 18,214 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Pork, Roast Leg of
Ingredients
Directions
Prepare
Score the skin of the pork leg in narrow strips, about ½ inch apart.
Cut a slit in the knuckle and loosen the skin.
Fill the skin with sage-and-onion stuffing.
Brush the joint with a little salad oil for better crackling.
Roast and serve
Roast over a bright, clear fire, not too close to avoid blistering the skin.
Baste well during cooking.
Serve with gravy from the dripping pan and apple sauce.
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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Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + sagetop 12% of all pairsSmell alikemoderateCooked together2,527 recipes
Shared aroma: 2-hexenal (green, leafy).
-
Sage + oniontop 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
- Pork leg
- Provides the main meat, whose skin and fat crisp and flavour the joint during roasting.
- Salad oil
- Coats the skin so it browns and crisps more evenly in the oven.
- Sage-and-onion stuffing
- Fills the skin pocket, adding moisture and herb aroma to the meat as it roasts.
The step that matters
Roast over a bright, clear fire, not too close. Intense direct heat too near the skin can blister and burn it before the fat renders and the crackling sets. Steady, moderate heat lets the skin dry and crisp evenly while the meat cooks through.
Swap the sage
How well each one fits the dish's main ingredients (pork, onion):
- Garlicfits better
- Thymefits better
- Cuminfits about as well
- Sagethe original
Fit is the average pairing score against pork, onion. 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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