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Dessert

Potato Paste

A dough made from mashed potatoes, butter, and egg, rolled and baked into a pastry.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Potato Paste

Ingredients

Directions

Prepare the dough

  1. Boil the potatoes until tender, then mash them.

  2. Pass the mashed potatoes through a colander while hot.

  3. Add the butter and egg to the hot potatoes and mix well.

Shape and bake

  1. Dust a clean surface with flour and roll out the potato mixture to the desired size.

  2. Quickly shape the paste and place it in the oven.

  3. If the paste cools, it may crack while baking.

  4. Optionally, brush the top with beaten egg yolk before baking.

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 + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

  3. Potato + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together5,355 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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 that becomes the paste's body once mashed and worked.
Butter
Adds fat for richness and a softer, more tender texture in the paste.
Egg
Binds the mashed potato so the paste holds together when rolled and shaped.

The step that matters

Shape quickly while the paste is hot. As potato cools, its starch firms up and it becomes stiff and brittle, so it is more likely to crack when rolled and baked. Shaping while it is still warm keeps it pliable.

Swap the potato

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

  1. Chivefits better
  2. Shallotfits better
  3. Leekfits better
  4. Potatothe original

Fit is the average pairing score against butter, egg, flour. 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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