Why it works: Onion and cucumber match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 6,050 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Good Vegetable Mullagatawny
Ingredients
Directions
Make the base
In a large stewpan or thick iron saucepan, melt the butter until just about to brown.
Add the sliced onions, vegetable marrow, cucumbers, and acid apples. Stir well.
Cook over gentle heat, shaking the pan often, until the vegetables are tender.
Stir in the curry powder and salt, and let the vegetables stew for 20 to 30 minutes.
Gradually add enough boiling water to just cover the vegetables.
Strain and finish
When the mixture is reduced to almost a pulp, press it through a fine sieve with a wooden spoon.
Heat the strained mixture in a clean stewpan, adding enough liquid to make 2 quarts.
Adjust seasoning with salt, cayenne, or acid as needed, and serve hot.
If butter appears on the surface, skim it off or stir in a small amount of arrow-root mixed with cold broth 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 their aromas overlap, and how often cooks already put them together.
-
Onion + cucumbertop 8% of all pairsSmell alikestrongCooked together6,050 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).
-
Cucumber + peppertop 12% of all pairsSmell alikemoderateCooked together5,991 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Adds richness and flavour as it melts and gently browns with the onions.
- Onions
- Soften and break down, giving the soup body and a sweet, savoury base.
- Vegetable marrow
- Breaks down into a pulp that thickens the soup and gives it smooth body.
- Cucumbers
- Soften during stewing, adding moisture and a mild, fresh flavour to the pulp.
- Acid apples
- Add tartness that balances the curry and sweetness from the vegetables.
- Curry powder
- Provides the spiced aroma and warm flavour that defines the dish.
The step that matters
Stewing the vegetables until they reach a pulp. Vegetables must be cooked until fully soft so they break down and strain smoothly; undercooked pieces stay grainy and the sieved soup will be thin and lumpy.
Swap the apple
How well each one fits the dish's main ingredients (butter, onion, cucumber, pepper):
- Avocadofits better
- Limefits better
- Mangofits better
- Applethe original
Fit is the average pairing score against butter, onion, cucumber, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Apple Soup33 recipes
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes