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Dessert

For the Potato Border

A decorative border made of mashed potatoes, butter, milk, pepper, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

For the Potato Border

Ingredients

Directions

Prepare the potato

  1. Boil the potatoes until very dry.

  2. Rub the potatoes through a fine sieve.

Make the mixture

  1. Melt the butter in a saucepan.

  2. Add the potato, milk, pepper, and salt to the melted butter.

  3. Heat the mixture thoroughly.

Pipe the border

  1. Transfer the mixture to a piping bag fitted with a large rose tip.

  2. Pipe the potato mixture in rows down the center of the dish to form a border about 2.5 inches wide and 2 inches deep.

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. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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 mixture and set into a sturdy, piped structure when dry and hot.
Butter
Adds richness and fat, giving the mash a smooth, silky texture.
Milk or cream
Adds moisture so the potato mashes smoothly and can be piped easily.

The step that matters

Boil the potatoes until very dry. Excess water makes the mash loose and sticky, so it will not hold its shape in the piping bag or keep a clean border. Drying the potatoes well gives a firm, pipeable mixture.

Swap the potato

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

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

Fit is the average pairing score against 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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