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 the ducks, clean them, and wash the inside in three waters.
Wash the inside in the second water with baking soda, then plunge the ducks into ice-cold water for 15 minutes.
Wipe the ducks inside and out.
Stuff the ducks with dry bread crumbs seasoned with salt, pepper, onion juice, and parsley.
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 12-15 minutes per pound.
Baste the ducks four times with the gravy from the pan.
Uncover the ducks.
Wash the ducks with butter.
Dredge the ducks with flour.
Brown the ducks.
Make the gravy and serve
Drain the pan to make the gravy.
Set the pan in ice water to remove grease.
Strain the pan.
Add finely minced giblets to the pan.
Thicken the gravy with browned flour.
Boil the gravy for 2 minutes.
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
- The main protein; roasting renders fat and cooks the meat through.
- Baking soda
- Washed into the inside to help the skin and meat stay tender during cooking.
- Butter
- Adds fat and richness, helping the skin brown and taste savory.
- Flour
- Dredged on the ducks to help the skin brown and form a crisp coating.
- Browned flour
- Thickens the gravy and adds a toasted, deep color and aroma.
- Dry bread crumbs
- Soak up juices inside the bird, adding moisture and a savory filling.
The step that matters
Plunge the ducks into ice-cold water for 15 minutes. Chilling after washing firms the skin and helps it crisp later during roasting, while the cold water also keeps the bird from warming up and spoiling before it is cooked.
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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