Why it works: Onion and carrot are a kitchen classic. They rank in the top 6% of all ingredient pairs, and 21,601 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Giblet Soup
Ingredients
Directions
Make the stock
Combine veal, giblets, mace, onions, carrots, and water in a pot.
Bring to a boil and simmer for 3 hours.
Strain the soup.
Finish the soup
Chop the gizzard.
Slice the liver.
Add the gizzard and liver back to the soup.
In a bowl, mix the flour with the butter until smooth.
Stir the flour mixture into the soup along with the red wine.
Bring the soup to a boil once more.
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 aroma chemistry they share, and how many recipes mention both.
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Onion + carrottop 6% of all pairsAroma overlapmoderateMentioned together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Carrot + flourtop 13% of all pairsAroma overlapmoderateMentioned together8,029 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mace + carrottop 15% of all pairsAroma overlapmoderateMentioned together2,592 recipes
Shared aroma: myristicin (spice, warm).
-
Onion + buttertop 15% of all pairsAroma overlapmoderateMentioned together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
- Veal
- Gives the soup a rich, meaty body as it simmers into the broth.
- Butter
- Adds fat and richness, and carries the flour so it blends smoothly.
- Flour
- Thickens the soup when mixed with butter and stirred into the hot liquid.
- Red wine
- Adds acidity and depth of flavour to the finished soup.
- Onions
- Build savory sweetness and aroma as they cook into the stock.
- Carrots
- Add natural sweetness and body to the stock during the long simmer.
The step that matters
Mixing the flour with the butter until smooth. Flour added directly to hot liquid clumps; blending it with fat first coats the starch granules so they disperse evenly and thicken the soup without lumps.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (veal, onion, carrot, butter, flour, red wine):
- Parsleybetter flavor fit
- Thymebetter flavor fit
- Celerybetter flavor fit
- Macethe original
Fit is the average pairing score against veal, onion, carrot, butter, flour, red wine. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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