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 ↓
Roast Duck
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Clean and dry the duck.
Soak the chopped onions in cold water, then drain.
Mix the onions with sage, bread crumbs, butter, salt, and pepper.
Stuff the duck with the mixture.
Roast
Dredge and baste the duck like a turkey.
Roast the duck in a 350°F (175°C) oven for over an hour.
Make the gravy and serve
For gravy, strain the drippings, skim off the fat, and stir in browned flour and mustard.
Serve the duck hot with currant jelly.
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).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Sage + mustardtop 9% of all pairsSmell alikestrongCooked together372 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Pepper + mustardtop 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
- Duck
- Provides the main meat, which becomes tender and flavourful as it roasts.
- Onions
- Soaking mellows their sharpness, and they add moisture and sweetness to the stuffing.
- Bread crumbs
- Absorb juices and butter in the stuffing, keeping it moist and lightly textured.
- Butter
- Adds fat for richness and helps the stuffing and skin brown.
- Browned flour
- Thickens the gravy and adds a toasted, nutty flavour.
The step that matters
Roast the duck in a 350°F (175°C) oven for over an hour. Duck has a thick layer of fat under the skin. Roasting long enough lets that fat render out so the skin crisps and the meat cooks through without drying.
Swap the currant
How well each one fits the dish's main ingredients (onion, sage, bread, butter, pepper, flour, mustard):
- Lemonfits better
- Avocadofits better
- Limefits better
- Currantthe original
Fit is the average pairing score against onion, sage, bread, butter, pepper, flour, mustard. 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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