Why it works: Sage and onion are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 3,628 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Roast Ducks
Ingredients
Directions
Prepare
Do not dress ducks the same day they are killed; hang them for 1-2 days if possible.
Prepare sage and onion stuffing and fill the body of one duck, leaving the other unseasoned.
Roast and serve
Truss and stuff the ducks, then place them over a brisk fire, basting frequently.
A few minutes before serving, lightly dredge the ducks with flour to make them look plump.
Serve hot with brown gravy poured around the ducks and a little in a tureen.
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.
-
Sage + oniontop 12% of all pairsSmell alikemoderateCooked together3,628 recipes
Shared aroma: coumarin (sweet, hay).
-
Sage + flourtop 13% of all pairsSmell alikemoderateCooked together2,115 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ducks
- Provide the main meat, whose fat renders and crisps during roasting.
- Flour
- Lightly dusted on the ducks to give a plump appearance rather than to add structure.
The step that matters
Basting frequently over a brisk fire. Duck has a thick layer of fat under the skin. Frequent basting moves heat and fat across the surface, helping the skin brown evenly and keeping the meat from drying out during fast roasting.
Swap the onion
How well each one fits the dish's main ingredients (sage, flour):
- Arrowrootfits better
- Parsnipfits better
- Kalefits better
- Onionthe original
Fit is the average pairing score against sage, 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.
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