Why it works: Onion and celery are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 18,518 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Boiled Duck
Ingredients
Directions
Prepare
Salt the duck and let it sit for two days.
Wrap the duck in a well-floured cloth.
Cook and serve
Boil the duck slowly for about 45 minutes.
Serve with onion sauce, celery sauce, or oyster 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.
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Sauce + oystertop 14% of all pairsSmell alikemoderateCooked together2,233 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + celerytop 15% of all pairsSmell alikemoderateCooked together6,905 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + oniontop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + saucetop 18% of all pairsSmell alikemoderateCooked together8,078 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Duck
- Provides the main protein and meat that the whole dish is built around.
- Coarse sea salt
- Seasons the duck deeply during the two-day rest, drawing out moisture and flavouring the meat.
- Flour
- Forms a coating on the cloth that helps keep the duck's surface contained during boiling.
The step that matters
Boil the duck slowly. Gentle simmering cooks the meat through while keeping it tender; a rapid boil toughens protein fibres and can break the cloth wrapping.
Swap the onion
How well each one fits the dish's main ingredients (flour, sauce, celery, oyster):
- Horseradishfits better
- Shallotfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against flour, sauce, celery, oyster. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Cream of Celery Soup113 recipes
Celery Stew25 recipes
Mock Oyster Soup21 recipes
Celery Croquettes16 recipes