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Mashed Irish Potatoes

A creamy mash of boiled potatoes, heavy cream, butter, and sea salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Mashed Irish Potatoes

Ingredients

Directions

Prepare the potatoes

  1. Peel and wash the potatoes thoroughly.

  2. Place them in a kettle and cover with boiling water.

  3. Boil until the potatoes are tender.

Mash and finish

  1. Drain the water and mash the potatoes until very fine.

  2. Gradually pour in the cream while mixing.

  3. Add the butter and salt, then beat until light and fluffy.

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. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  2. Potato + walnuttop 11% of all pairs
    Smell alikestrong
    Cooked together342 recipes

    Shared aroma: 2-undecenal (sweet).

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

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

  4. Walnut + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together6,832 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Potato + creamtop 17% of all pairs
    Smell alikelow
    Cooked together2,481 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

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; cooking softens their starch so they mash smooth.
Heavy cream
Adds moisture and richness, making the mash soft and smooth.
Butter
Adds fat for richness and a silky mouthfeel in the mashed potatoes.

The step that matters

Mash and beat in the cream gradually. Adding cream slowly while mixing lets the potatoes absorb it evenly. Overworking the mash after adding liquid can make it gluey, so the beating should stop once it is light and fluffy.

Swap the walnut

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

  1. Almondfits better
  2. Peanutfits better
  3. Beansfits about as well
  4. Walnutthe original

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