Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Finnan-haddie Croquettes
Ingredients
Directions
Prepare the fish
Soak the Finnan Haddie in equal parts milk and water until covered, for 1 hour.
Bake the soaked fish in the oven for 30 minutes, then drain and separate into flakes.
Make the filling
Cook the onion, red and green pepper in butter for five minutes.
Add flour, milk, and seasoning to the pan and stir.
Add the fish flakes, cool, shape into croquettes.
Coat and fry
Dip each croquette in crumbs, egg, and crumbs again.
Fry the croquettes in deep fat until cooked.
Nutrition, whole recipe (rough)
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Milk | 1 cup (244ml) whole | 149 |
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + milktop 20% of all pairsSmell alikemoderateCooked together13,418 recipes
Shared aroma: hexanal (green, grassy).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Finnan-haddie
- Provides the main flavour and flaky body of the croquettes.
- Butter
- Fat that softens the onion and adds richness to the filling.
- Milk
- Moistens the filling and helps bind it into a smooth base.
- Flour (in the method)
- Thickens the milk mixture so the filling holds its shape.
The step that matters
Cool the filling before shaping. A warm, loose filling is soft and sticky, so croquettes may slump or split. Cooling lets the starch set so the shapes hold during frying.
Swap the onion
How well each one fits the dish's main ingredients (butter, milk, pepper):
- Potatofits better
- Capsicumfits better
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against butter, milk, pepper. 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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