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 ↓
Curried Eggs
Ingredients
Directions
Make the sauce
In a skillet, melt the butter over medium heat.
Fry the sliced apple and onion until light brown.
In a bowl, mix the flour and curry powder with a little stock until smooth.
Gradually add this mixture to the apple and onion, stirring constantly.
Add the remaining stock and let the sauce cook for about 20 minutes.
Finish and serve
Slice the hard-boiled eggs and warm them in the sauce.
Serve hot, optionally with a border of rice.
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.
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 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
- Flour
- Thickens the stock into a smooth sauce as it cooks.
- Butter
- Carries the curry flavour and helps the apple and onion brown.
- Curry powder
- Gives the sauce its spiced, aromatic flavour.
- Apple
- Adds mild sweetness that balances the curry spices.
- Hard-boiled eggs
- Form the main body of the dish, warmed through in the sauce.
The step that matters
Gradually add the flour mixture to the apple and onion. Adding the flour mixture all at once can leave lumps. Adding it gradually while stirring constantly lets the starch disperse evenly, so the sauce thickens smoothly.
Swap the apple
How well each one fits the dish's main ingredients (butter, flour, onion, egg):
- Avocadofits better
- Raisinfits better
- Coconutfits better
- Applethe original
Fit is the average pairing score against butter, flour, onion, egg. 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