Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Egg Croquettes
Ingredients
Directions
Prepare the eggs
Place the eggs in a saucepan and cover them with cold water.
Simmer for 1 hour.
Make the custard
Scald the milk in a separate pot.
In a bowl, mix the butter and flour to form a paste.
Add the paste to the scalded milk and stir slowly until thickened.
Cover the mixture and cook for 5 minutes.
Season with salt, paprika, cayenne, onion juice, and mace.
Remove the mixture from heat.
Stir in the chopped parsley and diced hard-boiled eggs.
Spread the mixture on a buttered dish and let it cool.
Shape and fry
Dust your hands with flour and shape the mixture into small croquettes.
Dip each croquette in beaten egg, then roll it in bread crumbs.
Fry the croquettes in hot fat until golden brown.
Drain the croquettes on unglazed paper.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Eggs
- Provide structure when hard-boiled and set, and richness in the filling.
- Milk
- Forms the liquid base of the custard that thickens into the filling.
- Butter
- Adds richness and flavour to the flour paste that thickens the milk.
- Flour
- Thickens the milk into a firm mixture that holds its shape when cooled.
The step that matters
Let the mixture cool fully before shaping. A warm, soft custard is too loose to hold its shape and can break apart or leak in the hot fat. Cooling lets the starch set so the croquettes keep their form while frying.
Swap the mace
How well each one fits the dish's main ingredients (egg, milk, butter, flour, onion, parsley, bread):
- Capersfits better
- Nutmegfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against egg, milk, butter, flour, onion, parsley, bread. 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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