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Potato Border

A baked dish of mashed potatoes mixed with egg yolk, butter, milk, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 ↓

Potato Border

Oven, in the book's wordsA moderately hot oven

Ingredients

Directions

The book says “a moderately hot oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Prepare mashed potatoes with butter and milk.

  2. Mix the mashed potatoes with the beaten egg yolk, and season with salt and pepper.

  3. Press the mixture into a well-greased border mold.

Bake and serve

  1. Bake in a preheated oven at 350°F (175°C) for 20 minutes.

  2. Let it stand in the mold for 5 to 10 minutes before turning out.

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

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

  5. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 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

Mashed potato
Forms the main body of the border and gives it a soft, tender texture.
Egg yolk
Binds the potato mixture so it holds its shape when turned out of the mold.
Butter
Adds richness and fat, contributing to a softer texture and flavor.
Milk
Adds moisture, keeping the mashed potato smooth and easy to press into the mold.

The step that matters

Pressing the mixture into the mold. Potato mixture must be pressed evenly and firmly into a well-greased mold so no air pockets or gaps form. Uneven packing can leave weak spots, and insufficient greasing can make the border stick and break when turned out.

Swap the potato

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

  1. Capsicumfits about as well
  2. Potatothe original
  3. Asparagusfits about as well
  4. Chivefits less well

Fit is the average pairing score against egg, 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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