Why it works: Pepper and sage match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 5,388 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Baked Ducks
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Clean the duck the day before cooking for better flavor.
Make the stuffing
Mash the boiled Irish potatoes while hot and mix in the butter or lard.
Add the chopped onion, salt, pepper, and sage to the potato mixture.
Stuff and bake
Stuff the duck's body with the potato dressing and place some on the breast.
Bake the duck in the oven with the lard and water at 350°F (175°C) until cooked through.
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 + sagetop 3% of all pairsSmell alikestrongCooked together5,388 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + sagetop 11% of all pairsSmell alikemoderateCooked together386 recipes
Shared aroma: alpha-pinene (pine, turpentine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Duck
- Forms the main body of the dish and provides rich, fatty meat that stays moist when roasted.
- Irish potatoes
- Bulk and starch in the dressing, which soaks up juices and keeps the stuffing moist.
- Butter or lard
- Adds fat for richness and helps the potatoes and duck brown in the oven.
- Onion
- Adds savory depth and aroma to the potato dressing as it cooks inside the bird.
- Sage
- Contributes a warm, herbal aroma that suits the rich duck and potato dressing.
The step that matters
Baking until cooked through. A whole duck and a dense stuffing take much longer to heat at the centre than the outside takes to brown. The skin can look finished while the thickest parts and the stuffing are still underdone, so check the deepest part of the bird before serving.
Swap the sage
How well each one fits the dish's main ingredients (potato, butter, onion, pepper):
- Garlicfits better
- Parsleyfits better
- Thymefits better
- Sagethe original
Fit is the average pairing score against potato, butter, onion, pepper. 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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