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Mashed Potatoes

A creamy potato dish made by mashing boiled potatoes 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 the potatoes

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

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

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

Make the mash

  1. Add salt, butter, and boiling milk.

  2. Whip with a fork for 2 minutes.

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

Serve

  1. Heap the mashed potatoes in a serving dish.

  2. Top with a walnut-sized lump of butter and dust with pepper.

  3. Keep warm in the oven until 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. 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
Starch that breaks down when cooked and mashed, giving the body and fluffy texture of the dish.
Butter
Adds fat and richness, coating the potato starch for a smooth, silky mouthfeel.
Milk
Adds moisture and loosens the mash, so it becomes creamy rather than stiff.

The step that matters

Pass the potatoes through a ricer or mash thoroughly. Cooked potato cells break apart easily, and overworking or leaving lumps changes texture. Pushing gently through a ricer keeps the mash smooth without turning it gluey from excess agitation.

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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