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Murphy Potatoes

A skillet dish of potatoes, onion, and green pepper sautéed in butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Murphy Potatoes

Ingredients

Directions

  1. In a skillet, melt a little butter over medium heat.

  2. Add small cubes of raw potatoes and chopped onion.

  3. Fry until the potatoes are cooked through and golden brown.

  4. Before removing from heat, stir in the chopped green pepper.

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

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

  3. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

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

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

  5. Onion + buttertop 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

Potatoes
Form the bulk of the dish and turn tender and starchy while frying.
Onion
Adds sweetness and aroma as it softens and caramelizes in the butter.
Butter
Conducts heat for frying and adds richness and browning.
Green pepper
Adds fresh, slightly bitter flavor and a bit of crunch when stirred in late.

The step that matters

Stir in the green pepper before removing from heat. Green pepper cooks quickly and turns soft and dull if overheated. Adding it near the end keeps some crispness and bright flavor while the potatoes finish browning.

Swap the onion

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

  1. Capsicumfits about as well
  2. Chivefits about as well
  3. Onionthe original
  4. Carrotfits about as well

Fit is the average pairing score against potato, 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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