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
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
Wash and dry the ducks carefully.
Make a stuffing with sage and onion, then insert it into the ducks and sew them up completely.
Roast
Roast the ducks in a 400°F (200°C) oven for about 1 hour, basting them well.
A few moments before serving, lightly dredge the ducks with flour to make them froth and look plump.
Serve
Serve hot with a good brown gravy poured over them.
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 and fat, which keep the flesh moist as it roasts.
- Sage
- Adds a savoury, herbal aroma to the stuffing and the meat.
- Onion
- Softens and sweetens as it cooks inside the stuffing, adding moisture and flavour.
- Flour
- Dusted on the skin, it helps the surface brown and look puffed.
- Brown gravy
- Adds moisture and rich savoury flavour to the finished birds.
The step that matters
Baste the ducks well. Spooning the pan juices over the birds during roasting keeps the surface moist and promotes even browning. Regular basting also helps the skin brown evenly as the fat renders.
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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