Why it works: Carrot and pepper match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 14,555 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Brown Macaroni Soup
Ingredients
Directions
Brown the vegetables
Fry the sliced onion or leek, carrot, and peppercorns in butter until brown but not burnt.
Sprinkle cornflour over the vegetables.
Stir the mixture until it turns brown.
Make the soup
Pour boiling bone stock over the mixture.
Stir until the stock boils.
Let the soup simmer for 1 hour.
Burn a little sugar in a spoon.
Stir the sugar into the soup.
Sprinkle sugar over the vegetables while frying for quicker browning.
Strain and add macaroni
Rub the soup through a wire sieve.
Return the strained soup to the saucepan.
Boil the macaroni in salted water for 20 minutes.
Strain the macaroni.
Cut the macaroni into 1-inch pieces.
Add the macaroni to the soup.
Simmer the soup with macaroni for 15 minutes.
Season and serve
Season the soup with salt and pepper if necessary.
Pour the soup into a hot tureen.
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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Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Carries the frying and helps the vegetables brown, adding richness and flavour.
- Cornflour
- Thickens the stock as it cooks, giving the soup body.
- Bone stock
- Forms the liquid base, adding savoury depth and body to the soup.
- Onion or leek
- Softens and browns, adding sweet, savoury flavour to the base.
- Carrot
- Browns and adds natural sweetness and colour to the base.
- Macaroni
- Adds starch and bulk, making the soup more substantial.
The step that matters
Brown the vegetables until brown but not burnt. Browning builds deep, roasted flavour through Maillard reactions and caramelisation. Once the sugars and solids scorch, they turn bitter and can spoil the flavour and colour of the whole soup.
Swap the onion
How well each one fits the dish's main ingredients (butter, carrot, sugar, pepper):
- Capsicumfits better
- Parsnipfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against butter, carrot, sugar, pepper. 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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