Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Indian Curry of Vegetables
Ingredients
Directions
Make the curry
In a skillet, melt the butter over medium heat.
Add the diced vegetables and curry powder; simmer for a few minutes without browning.
Stir in the tomatoes, grated onion, and green pepper.
Fill the skillet with boiling water and cover.
Let it stew gently until the vegetables are tender and the water reduces to one-third.
If too thin, stir in flour to thicken.
Finish and serve
Just before serving, stir in an additional tablespoon of butter.
Serve hot in a shallow dish.
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.
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 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).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Adds richness and a silky mouthfeel, and carries the curry powder's aroma.
- Curry powder
- Provides the main spice aroma and flavour of the dish.
- Diced vegetables
- Form the body of the dish and soften into tender pieces during stewing.
- Tomatoes
- Add acidity and moisture that help build the sauce.
- Flour
- Thickens the cooking liquid if the curry is too thin.
The step that matters
Simmering the curry powder without browning. Gentle heat lets the curry powder bloom in the butter and release its aroma. Higher heat can scorch the spices and turn them bitter, and browning the vegetables changes their flavour.
Swap the tomato
How well each one fits the dish's main ingredients (butter, onion, pepper, flour):
- Chivefits better
- Okrafits better
- Leekfits better
- Tomatothe original
Fit is the average pairing score against butter, onion, pepper, flour. 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.
Tomato Soup526 recipes
Cream of Tomato Soup107 recipes
Tomato Bisque61 recipes
Cream Tomato Soup28 recipes