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Mashed Potatoes

Mashed potatoes are boiled potatoes mashed with butter, milk, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Mashed Potatoes

Ingredients

Directions

Prepare

  1. Wash, peel, and cook the potatoes in boiling water until tender.

  2. Drain the water, remove the lid briefly, then shake the pot to release steam.

  3. Pass the potatoes through a potato press or mash thoroughly until smooth.

Season and serve

  1. Add salt, butter, and boiling milk, then whip with a fork for two minutes.

  2. If not creamy enough, add more hot milk gradually.

  3. Heap the mashed potatoes in a serving dish, top with a walnut-sized lump of butter, and dust with pepper.

  4. Keep in a warm oven until ready to serve.

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

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

  3. Potato + milktop 9% of all pairs
    Smell alikemoderate
    Cooked together3,611 recipes

    Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).

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

    Shared aroma: 2-undecenal (sweet).

  5. Pepper + walnuttop 13% of all pairs
    Smell alikemoderate
    Cooked together3,039 recipes

    Shared aroma: 2-nonenal (fatty, green).

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

What each ingredient does

Potatoes
Provide the starchy base whose mashed structure gives the dish its body.
Butter
Adds fat for richness and a smooth, silky mouthfeel.
Milk
Adds moisture so the mash becomes creamy and loosens as it is whipped.

The step that matters

Whip with boiling milk and add hot milk gradually. Starch granules in potatoes swell and can turn gluey when overworked. Whipping briefly with a fork and using hot liquid keeps the mash smooth; cold milk would cool the potatoes and make the texture stiff or lumpy.

Swap the walnut

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

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

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