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Lyonnaise Potatoes

A sautéed potato dish with butter, onions, parsley, salt, and white pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Lyonnaise Potatoes

Ingredients

Directions

Brown the onion

  1. In a skillet, brown the minced onion in butter over medium heat.

Cook the potatoes

  1. Add the diced potatoes and gently lift with two forks until they absorb all the butter.

Finish and serve

  1. Remove from heat and stir in the chopped parsley.

  2. Serve hot.

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

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

  4. Potato + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together6,456 recipes

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

  5. White pepper + parsleytop 14% of all pairs
    Smell alikelow
    Cooked together1,451 recipes

    Shared aroma: myrcene (balsamic, herbaceous).

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

What each ingredient does

Potatoes
Form the main body of the dish and soak up the butter, giving a tender interior.
Butter
Carries the flavour and fat that help the potatoes and onion brown in the pan.
Onion
Browns in the butter to add sweet, savoury aroma.

The step that matters

Lifting the potatoes gently with two forks. Diced cooked potatoes are fragile. Stirring hard breaks their surfaces and mashes them, while gentle lifting keeps pieces whole and lets the butter coat them evenly.

Swap the white pepper

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

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

Fit is the average pairing score against potato, onion, butter, 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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