Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Roast Ducks
Ingredients
Directions
Prepare the ducks
Draw and clean the ducks.
Wash the inside of the ducks in three waters. Use baking soda in the second wash.
Plunge the ducks into ice-cold water for fifteen minutes.
Wipe the ducks inside and out.
Stuff the ducks with dry crumbs seasoned with salt, pepper, onion juice, and parsley. Pack the stuffing well without moistening.
Dredge the ducks with salted and peppered flour.
Roast
Place the ducks on a roasting rack.
Pour boiling water over the ducks.
Roast the ducks covered for 12 to 15 minutes per pound.
Baste the ducks four times with the drippings.
Uncover the ducks.
Wash the ducks with butter.
Dredge the ducks with flour.
Brown the ducks.
Make the gravy
Drain the pan.
Set the pan in ice water to separate grease.
Strain the liquid.
Add minced giblets.
Thicken the gravy with browned flour.
Boil the gravy for two minutes.
Serve
Serve the ducks with currant jelly or apple sauce and green peas.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Bread + peastop 11% of all pairsSmell alikemoderateCooked together804 recipes
Shared aroma: hexyl acetate (fruity, apple).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Ducks
- Provide the main meat, whose fat renders and drippings build the gravy.
- Baking soda
- Raises the pH of the wash water, helping the skin brown and crisp.
- Butter
- Adds fat and richness to the skin, aiding browning and flavor.
- Browned flour
- Thickens the gravy and adds a toasted, nutty flavor.
- Dry bread crumbs
- Absorb the seasoned juices inside the bird, adding moisture and body to the stuffing.
The step that matters
Pack the stuffing well without moistening. Loose or wet stuffing can slow cooking and let the bird steam, so it must stay dry and firm for even roasting.
Swap the currant
How well each one fits the dish's main ingredients (bread, pepper, onion, parsley, flour, butter, peas):
- Lemonfits better
- Avocadofits better
- Limefits better
- Currantthe original
Fit is the average pairing score against bread, pepper, onion, parsley, flour, butter, peas. 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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