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Potatoes a LA Lyonnaise

Sautéed boiled potatoes with onion, parsley, butter, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Potatoes a LA Lyonnaise

Ingredients

Directions

Prepare

  1. Slice the cold boiled potatoes.

  2. Heat the butter in a skillet.

Cook and serve

  1. Add the potatoes and onions to the skillet and fry until light brown.

  2. Stir in the chopped parsley and mix thoroughly.

  3. Transfer the potatoes to a heated dish lined with a heated napkin, covering them with the napkin but not the dish.

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. Parsley + peppertop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

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

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

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

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

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

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

  5. Potato + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together8,305 recipes

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

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

What each ingredient does

Potatoes
Form the bulk of the dish and, once fried, give a crisp, golden exterior around a soft interior.
Butter
Conducts heat for frying and adds richness and browning to the potato surfaces.
Onion
Adds savoury sweetness that deepens as it cooks alongside the potatoes.

The step that matters

Frying until light brown. Potatoes need enough hot butter and time to form a browned crust; crowding the pan or stirring too often leaves them pale and steamed rather than crisp.

Swap the onion

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

  1. Carrotfits better
  2. Chivefits better
  3. Capsicumfits better
  4. Onionthe original

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