Why it works: Celery and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 16,001 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
The recipe
Ingredients
Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Also mentioned in the method: bread
Directions
Prepare the vegetables
Wash the celery thoroughly and cut it into 1-inch lengths.
Put the celery and onion into a pan with just enough water to cover them and stew gently for 2 hours, or until very tender.
Rub the mixture through a fine sieve to remove any solids.
Make the soup
Put the puree into a pan with the stock, milk, bay leaf, mace, and salt and pepper to taste.
Mix the cornflour with a little cold water.
Just before the soup boils, add the mixture to the pan.
Stir continuously until the soup thickens, then simmer for 5 minutes.
Serve
Serve with slices of fried bread.
For a richer soup, stir in ½ pint of whipped cream just before serving.
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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Celery + peppertop 3% of all pairsAroma overlapstrongMentioned together16,001 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + oniontop 5% of all pairsAroma overlapmoderateMentioned together18,506 recipes
Shared aroma: guaiacol (smoky, sweet).
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Pepper + macetop 6% of all pairsAroma overlapmoderateMentioned together12,257 recipes
Shared aroma: myristicin (spice, warm).
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Onion + peppertop 6% of all pairsAroma overlapmoderateMentioned together68,463 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Celery + macetop 7% of all pairsAroma overlapstrongMentioned together2,769 recipes
Shared aroma: myristicin (spice, warm).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Provides the main flavour and, once stewed and sieved, the body of the soup.
- Milk
- Adds creaminess and softens the flavour of the stock.
- Cornflour
- Thickens the soup when stirred into liquid and heated until it sets.
- Spanish onion
- Adds savoury sweetness as it softens during the long stew.
The step that matters
Adding the cornflour mixture. Cornflour must be dispersed in cold water first and added near boiling, then stirred constantly. Added to hot liquid without this, it clumps, and the soup thickens unevenly.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (celery, milk, onion, pepper):
- Parsleybetter flavor fit
- Thymebetter flavor fit
- Dillbetter flavor fit
- Macethe original
Fit is the average pairing score against celery, milk, onion, pepper. 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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