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 ↓
Scalloped Herring
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Soak the salt herrings overnight.
Remove all skin and bones, then cut the fish into 1-inch squares.
Slice the cold potatoes.
Assemble
In a baking dish, alternate layers of sliced potatoes and fish.
Add a bit of butter and a good sprinkling of pepper to each layer of fish.
Begin and end with a layer of potatoes.
In a bowl, mix the milk and beaten eggs, then pour over the layered dish.
Combine the bread crumbs with drawn butter and sprinkle on top.
Bake and serve
Bake at 400°F (200°C) for about 40 minutes.
Serve hot.
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).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salt herrings
- Main fish, salted and soaked to reduce salt before being layered and baked.
- Potatoes
- Form the starchy layers that soften during baking and soak up the custard.
- Milk
- Forms the liquid base that moistens the layers as it bakes.
- Eggs
- Help the milk mixture set into a custard that holds the layers together.
- Bread crumbs
- Form a crisp, golden topping when baked with butter.
The step that matters
Soak the salt herrings overnight. Salt herring is very salty, so soaking draws out excess salt. Without it, the fish can make the whole dish overly salty once the custard concentrates the flavour during baking.
Swap the potato
How well each one fits the dish's main ingredients (butter, pepper, milk, egg, bread):
- Capsicumfits about as well
- Potatothe original
- Asparagusfits about as well
- Tomatofits less well
Fit is the average pairing score against butter, pepper, milk, egg, 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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