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Brook Trout with New Potatoes

A dish of brook trout served with stewed new potatoes in a butter‑flour‑milk sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Brook Trout with New Potatoes

Ingredients

Directions

Prepare

  1. Scrape or rub the skin from the new potatoes and boil them in salted water until tender. Drain and set aside.

  2. Wash the trout in cold salted water and dry them with a clean towel.

Make the sauce

  1. In a saucepan, melt the butter and flour over medium heat, stirring until blended. Gradually add the milk, salt, and white pepper, and bring to a boil.

  2. Add the drained potatoes to the sauce and keep warm over low heat.

Cook and serve

  1. Rub a frying pan with the cut onion, then add the butter, parsley, and green herbs. Heat the pan over medium heat.

  2. When the butter is hot, add the trout, season with salt and pepper, and cook, shaking the pan occasionally to prevent burning.

  3. Serve the trout hot with the stewed new potatoes.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Potato + oniontop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Potato + parsleytop 5% of all pairs
    Smell alikemoderate
    Cooked together2,855 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  4. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  5. Potato + milktop 9% of all pairs
    Smell alikemoderate
    Cooked together3,611 recipes

    Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

New potatoes
Become tender and absorb the sauce, giving the dish its starchy body.
Butter
Adds richness and flavor to the sauce and to the frying pan.
Flour
Thickens the milk into a smooth white sauce when cooked with the butter.
Milk
Forms the base of the white sauce, adding creaminess and body.
Trout
Provides the main protein, cooked in the hot butter until done.

The step that matters

Shaking the pan while cooking the trout. Shaking keeps the butter moving so the fish does not sit still and scorch. Hot butter browns milk solids quickly, so constant movement helps the trout cook evenly without burning.

Swap the white pepper

How well each one fits the dish's main ingredients (potato, butter, flour, milk, onion, parsley):

  1. Thymefits better
  2. Garlicfits better
  3. Capersfits better
  4. White pepperthe original

Fit is the average pairing score against potato, butter, flour, milk, onion, parsley. 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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