Skip to main content
Main

Lyonnaise Potatoes

Lyonnaise potatoes are diced boiled potatoes sautéed with butter, onions, salt, and parsley.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
Jump to recipe ↓

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

Prepare

  1. Cut the cold boiled potatoes into dice.

  2. Heat the butter in a frying pan until hot.

  3. Add the sliced onion and stir until golden brown.

Cook and serve

  1. Add the diced potatoes and cook slowly until lightly colored.

  2. Sprinkle with salt.

  3. Transfer to a hot dish.

  4. Garnish with chopped parsley before serving.

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. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

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

What each ingredient does

Cold boiled potatoes
Provide the starchy base; cold, firm potatoes hold their shape when fried.
Butter
Conducts heat into the pan and adds richness and browning to the potatoes.
Onion
Browns and caramelizes, adding sweetness and savory depth to the dish.

The step that matters

Cook the potatoes slowly until lightly colored. Cold, cooked potatoes are already tender, so the goal is only surface browning. High heat can scorch the butter and onion before the potato surfaces crisp, leaving the dish bitter and unevenly colored.

Swap the parsley

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

  1. Garlicfits better
  2. Thymefits about as well
  3. Parsleythe original
  4. Capersfits less well

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

You might also like

Potato CroquettesPotato Croquettes255 recipesPotato RollsPotato Rolls78 recipesPotato ChipsPotato Chips53 recipesSweet Potato CroquettesSweet Potato Croquettes53 recipes