Why it works: Pork and apple are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,581 recipes. Both carry 4-heptenal, which smells creamy, biscuit. The science ↓
Roast Duck
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
Truss the duck as you would a chicken.
Place the duck in a dripping pan on a rack.
Dredge the duck with flour and place the salt pork on the breast.
If desired, stuff the duck with quartered apples before roasting.
Roast and serve
Bake at 400°F (200°C) for 20 to 30 minutes, basting often.
Domestic ducks require twice the time to roast as wild ducks.
Serve with an acid 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 + appletop 13% of all pairsSmell alikemoderateCooked together1,581 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
-
Flour + saucetop 18% of all pairsSmell alikemoderateCooked together8,078 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + appletop 22% of all pairsSmell alikemoderateCooked together6,140 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pork + saucetop 23% of all pairsSmell alikelowCooked together4,666 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + porktop 27% of all pairsSmell alikelowCooked together11,187 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and pork barely smell alike, yet cooks put them together in 11,187 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Duck
- The main protein, which the roasting turns tender and cooks through.
- Flour
- Dusted on the skin to help it brown and crisp in the oven.
- Salt pork
- Lays fat over the breast, adding moisture and rich flavor as it renders.
- Apples
- Optional stuffing that adds aroma and a mild sweetness to the cavity.
The step that matters
Basting often during baking. Duck has a lot of fat under the skin. Regular basting helps keep the meat moist while the fat renders and the skin browns evenly.
Swap the apple
The recipe marks apple as optional. How well each one fits the dish's main ingredients (flour, pork, sauce):
- Raisinfits better
- Avocadofits better
- Coconutfits about as well
- Applethe original
Fit is the average pairing score against flour, pork, sauce. 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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