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 ↓
Spinach Croquettes
Ingredients
Directions
Make the mixture
Brown the onion in butter, then remove the pieces.
Stir in the chopped spinach.
Gradually add flour, bread crumbs, grated cheese, beaten egg yolks, milk, salt, and nutmeg.
Shape and fry
Mold the mixture while warm on a floured board.
Fry the croquettes until golden brown.
Finish and serve
Drain, place on a dish, sprinkle with grated cheese, drizzle with melted butter, and heat in the oven.
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 + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Bread + cheesetop 7% of all pairsSmell alikemoderateCooked together2,130 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Spinach + oniontop 8% of all pairsSmell alikestrongCooked together3,336 recipes
Shared aroma: coumarin (sweet, hay).
-
Butter + cheesetop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg yolks bind the mixture so the croquettes hold their shape when fried.
- Flour
- Thickens the spinach mixture so it can be molded rather than staying loose.
- Bread crumbs
- Absorb moisture and add body, helping the croquettes firm up for shaping.
- Grated cheese
- Adds savory flavor and helps bind the mixture while melting slightly with heat.
- Spinach
- Main bulk of the croquettes, contributing moisture and a vegetable flavor.
The step that matters
Mold the mixture while warm on a floured board.. Warm mixture is softer and easier to shape, while flour on the board keeps it from sticking. Shaping cold mixture is harder, and it firms up as it cools, so timing matters.
Swap the onion
How well each one fits the dish's main ingredients (spinach, butter, flour, bread, cheese, egg, milk):
- Asparagusfits better
- Chivefits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against spinach, butter, flour, bread, cheese, egg, milk. 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.
Brown Bread461 recipes
Macaroni and Cheese102 recipes
White Bread80 recipes
Bread Omelette60 recipes