Why it works: Beef and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 17,091 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
To Make Vermicelli Soup
Ingredients
Directions
Prepare the beef
Cut the beef into small pieces and fry them in butter until very brown.
Wash the pan with a little of the gravy each time.
Broil a few pieces of beef on a gridiron.
Make the soup
Combine all the beef, onion, salt, and whole pepper in a pot.
Let it simmer until the meat is tender, skimming off the fat.
Strain the mixture into a dish.
Boil the vermicelli in a little of the gravy until soft.
Add the cooked spinach to the vermicelli.
Serve the soup garnished with diced carrots or cucumber.
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.
Photo for illustrative purposes only · Contact us to use it
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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Beef + oniontop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + carrottop 3% of all pairsAroma overlapstrongMentioned together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Spinach + carrottop 4% of all pairsAroma overlapstrongMentioned together870 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Onion + carrottop 4% of all pairsAroma overlapstrongMentioned together21,599 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + spinachtop 4% of all pairsAroma overlapmoderateMentioned together3,400 recipes
Shared aroma: nonanal (fat, citrus).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef
- Provides the main savoury flavour and body of the soup as it simmers.
- Butter
- Fat for frying the beef, helping it brown and develop deeper flavour.
- Onion
- Adds aromatic sweetness and flavour to the simmered broth.
- Vermicelli
- Thin pasta that softens in the gravy, giving the soup its substance.
The step that matters
Frying the beef until very brown. Browning creates deep, roasted flavours through the Maillard reaction. Pale meat gives a flat-tasting gravy, so the pieces need space and enough heat to brown rather than steam.
Flavor stand-ins for the spinach
How well each one fits the dish's main ingredients (beef, butter, onion, pepper, carrot):
- Potatobetter flavor fit
- Capsicumbetter flavor fit
- Tomatobetter flavor fit
- Spinachthe original
Fit is the average pairing score against beef, butter, onion, pepper, carrot. 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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