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 ↓
Duck, Roast
Ingredients
Directions
The book says “a brisk oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the duck
Pluck, singe, and empty the duck.
Scald and skin the feet, then twist them around the back.
Cut off the head, neck, and pinions at the first joint.
Skewer everything firmly for a plump appearance.
Stuff and roast
In a bowl, mix the chopped onions, sage, bread crumbs, minced liver, pepper, salt, and cayenne.
Stuff the mixture inside the duck.
Roast the duck in a preheated oven at 350°F (175°C) until cooked through.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sage + livertop 12% of all pairsSmell alikelowCooked together229 recipes
Shared aroma: 1,8-cineol (eucalyptus, camphor).
-
Onion + sagetop 12% of all pairsSmell alikemoderateCooked together3,628 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + livertop 15% of all pairsSmell alikelowCooked together1,420 recipes
Shared aroma: furaneol (caramel, strawberry).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Add moisture and savory sweetness to the stuffing as they soften and release juices.
- Bread crumbs
- Absorb liquid from the stuffing and give it a soft, moist body.
- Duck liver
- Adds rich, savory depth and a firmer texture to the stuffing.
The step that matters
Roast the duck until cooked through. Duck has fatty skin and dense meat, so it needs to reach a safe internal temperature throughout. Checking the thickest part, usually the thigh or breast, confirms it is fully cooked without overcooking the rest.
Swap the onion
How well each one fits the dish's main ingredients (sage, bread, liver, pepper):
- Capsicumfits better
- Carrotfits better
- Tomatofits better
- Onionthe original
Fit is the average pairing score against sage, bread, liver, 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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