Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Veal Soup
Ingredients
Directions
Make the broth
Boil the knuckle of veal in water for 3 hours.
Add the potatoes, onion, and rice to the pot.
Boil the mixture for another hour.
Remove the veal and potatoes from the pot.
Season the soup to taste.
Prepare the meat and potatoes
Cut the veal and potatoes into small pieces.
Season the pieces with pepper, salt, and vinegar.
Make the sauce and serve
In a separate pot, combine the milk (or milk and water) with flour.
Thicken the mixture over heat.
Add the butter to the mixture.
Pour the sauce over the veal and potatoes.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + ricetop 7% of all pairsSmell alikestrongCooked together851 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Rice + milktop 7% of all pairsSmell alikemoderateCooked together7,374 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + ricetop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Veal knuckle
- Gives the soup its meaty flavour and body as it simmers for hours.
- Potatoes
- Soften during cooking and add starch and body to the dish.
- Rice
- Releases starch as it cooks, helping thicken the soup.
- Flour
- Combined with milk and heated, it thickens the sauce.
- Milk
- Forms the base of the sauce, adding richness and a creamy texture.
- Butter
- Adds fat and richness to the finished sauce.
The step that matters
Thicken the milk and flour mixture over heat. Flour must be stirred into the milk and heated so its starch swells and thickens the sauce evenly. If heated without constant stirring, it can clump or scorch on the bottom of the pot.
Swap the onion
How well each one fits the dish's main ingredients (veal, potato, rice, pepper, vinegar, milk, flour):
- Capsicumfits better
- Asparagusfits about as well
- Carrotfits about as well
- Onionthe original
Fit is the average pairing score against veal, potato, rice, pepper, vinegar, milk, flour. 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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