Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Curry Sauce
Ingredients
Directions
Melt the butter in a saucepan over medium heat.
Stir in the flour and curry powder, cooking until well combined.
Gradually add water or white stock, stirring constantly until the sauce thickens.
Remove from heat and stir in onion juice and lemon juice.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Butter + meattop 16% of all pairsSmell alikemoderateCooked together7,594 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Onion + meattop 17% of all pairsSmell alikelowCooked together6,364 recipes
Shared aroma: 2,4-decadienal (seaweed).
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
- Carries the curry powder and gives the sauce richness and a smooth mouthfeel.
- Flour
- Thickens the sauce when cooked with fat and liquid, giving it body.
- Curry powder
- Provides the main spiced flavor and aroma of the sauce.
- Lemon juice
- Adds acidity that brightens the flavor and balances the richness of the butter.
The step that matters
Gradually add the liquid while stirring constantly. Adding liquid slowly while stirring keeps the flour dispersed so it hydrates evenly. Pouring it in all at once can form lumps that are hard to smooth out, leaving the sauce grainy instead of silky.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, onion, meat):
- Avocadofits better
- Coconutfits better
- Raisinfits better
- Lemonthe original
Fit is the average pairing score against butter, flour, onion, meat. 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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