Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Giblet Soup
Ingredients
Directions
Prepare the giblets
Wash the giblets in warm water two or three times.
Break the bones, cut the neck and gizzards into pieces, and split the head in two.
For goose giblets, use two sets; for duck giblets, use four sets.
Make the soup
Place the giblets in a pot with 2 pints of cold water and bring to a boil gradually.
Skim off the scum.
Add sweet herbs, pepper, salt, mace, and the onion.
Let the mixture stew for 1.5 to 2 hours until the gizzards are tender.
Remove the giblets and strain the soup.
Thicken the soup with flour and butter, then flavor with catsup or Harvey's sauce.
Serve the giblets and soup together.
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 + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Pepper + macetop 16% of all pairsSmell alikelowCooked together12,257 recipes
Shared aroma: myristicin (spice, warm).
Flour and butter 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
- Giblets
- Provide the meat and rich flavor that form the base of the soup.
- Flour
- Thickens the soup as it cooks, giving it body.
- Butter
- Adds richness and fat, rounding out the thickened soup.
- Onion
- Adds savory aromatic flavor to the stock during stewing.
The step that matters
Bringing the water to a boil gradually. Starting giblets in cold water and heating slowly lets proteins and impurities rise gradually as scum, which can then be skimmed off. Rapid boiling can cloud the broth and emulsify fat into it.
Swap the mace
How well each one fits the dish's main ingredients (pepper, onion, flour, butter, sauce):
- Capersfits better
- Parsleyfits better
- Garlicfits better
- Macethe original
Fit is the average pairing score against pepper, onion, flour, butter, sauce. 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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