Why it works: Butter and mushroom are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 12,525 recipes. Both carry trans-2-decenal, which smells waxy, orange. The science ↓
Gravy for Poultry
Ingredients
Directions
Make the stock
Combine the neck, feet, giblets, water, herbs, and onion in a pot.
Simmer for 1 hour.
Strain the mixture.
Finish the gravy
Pound the liver.
Add it to the strained liquid.
Thicken the gravy with butter and flour to your desired consistency.
Season with pepper, coarse sea salt, and a little mushroom ketchup.
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.
-
Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
-
Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Onion
- Adds aromatic sweetness and savory depth to the stock.
- Poultry giblets and trimmings
- Provide rich, concentrated meaty flavor to the stock.
- Butter
- Fat that combines with flour to thicken the gravy and add richness.
- Flour
- Starch that thickens the liquid into a smooth, body-rich gravy.
The step that matters
Thicken the gravy with butter and flour. Flour must be cooked with the fat before or as it meets the liquid, and the gravy must be simmered briefly. Otherwise it can taste raw and form lumps, and it thickens unevenly.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, pepper, mushroom, ketchup):
- Shallotfits better
- Capsicumfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against butter, flour, pepper, mushroom, ketchup. 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.
Mushroom Soup60 recipes
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes