Why it works: Celery and carrot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 10,172 recipes mention both. Both carry myristicin, which smells spice, warm. The science ↓
Thick Mulligatawny Soup
Ingredients
Directions
Prepare
Melt the butter in a pot over medium heat.
Slice the vegetables and fry them in the butter until they begin to brown.
Make the soup
Add the curry powder and a squeeze of lemon juice, stirring for 4-5 minutes.
Stir in the flour, then add the chopped apple, herbs, and celery seeds tied in muslin.
Pour in the stock and stir until boiling.
Add the Bovril and a little salt, then simmer gently for 45-60 minutes.
Adjust seasoning with more salt and lemon juice if necessary.
If the soup is too thick, add more stock or water.
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 + carrottop 1% of all pairsAroma overlapstrongMentioned together10,172 recipes
Shared aroma: myristicin (spice, warm).
-
Celery + lemontop 2% of all pairsAroma overlapstrongMentioned together3,467 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Onion + carrottop 4% of all pairsAroma overlapstrongMentioned together21,599 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Celery + oniontop 5% of all pairsAroma overlapmoderateMentioned together18,506 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Carrot + lemontop 5% of all pairsAroma overlapstrongMentioned together3,350 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Carries the frying of the vegetables and gives a rich, savoury base.
- Flour
- Thickens the stock into a smooth, body-rich soup as it cooks.
- Onion
- Browns in the butter to build sweetness and savoury depth.
- Apple
- Adds subtle sweetness and acidity that balances the curry spices.
- Curry powder
- Provides the warm, aromatic spice character that defines the soup.
- Stock
- Forms the liquid base and carries the flavour of the whole soup.
The step that matters
Frying the vegetables until they begin to brown. Browning the onion and carrot in butter builds deeper, roasted savoury flavour through the Maillard reaction. Pale vegetables give a flatter, less complex soup.
Flavor stand-ins for the apple
How well each one fits the dish's main ingredients (butter, flour, celery, onion, carrot, lemon):
- Orangebetter flavor fit
- Limebetter flavor fit
- Avocadobetter flavor fit
- Applethe original
Fit is the average pairing score against butter, flour, celery, onion, carrot, lemon. 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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