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 ↓
Vegetable Mullagatawny
two quartsIngredients
Directions
Make the base
In a large stewpan or thick iron saucepan, melt the butter until it's about to brown.
Add the sliced onions, vegetable marrow, cucumbers, and apples.
Stir often and cook over gentle heat until the vegetables are tender.
Sprinkle the curry powder and salt over the vegetables and mix well.
Continue to stew for 20 to 30 minutes.
Gradually pour in 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 two quarts.
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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Onion + cucumbertop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Cucumber + appletop 15% of all pairsSmell alikemoderateCooked together363 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + appletop 19% of all pairsSmell alikemoderateCooked together3,206 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Fat that carries the curry flavour and gives a rich, lightly browned base.
- Onions
- Sweet, savoury base that softens and thickens as it stews down.
- Vegetable marrow
- Bulk and mild body, breaking down to a smooth pulp when pressed.
- Cucumbers
- Adds moisture and a fresh, mild vegetal flavour that softens when stewed.
- Apples
- Acidity and natural sweetness that balance the curry powder.
- Curry powder
- Supplies the spice aroma that defines the soup.
The step that matters
Stewing down to a pulp. Cooking gently and stirring often keeps the vegetables from scorching on the bottom of the pan. They must soften fully, because only thoroughly cooked vegetables press through a sieve into a smooth soup.
Swap the apple
How well each one fits the dish's main ingredients (butter, onion, cucumber):
- Avocadofits better
- Coconutfits better
- Mangofits better
- Applethe original
Fit is the average pairing score against butter, onion, cucumber. 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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