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Duchesse Potatoes

A baked potato cake with butter, egg, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Potato and nutmeg are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,052 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Duchesse Potatoes

Oven, in the book's wordsA moderate oven

Ingredients

Directions

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

Prepare

  1. Mash the hot boiled potatoes through a fine colander using a potato masher.

  2. Mix in the butter, salt, white pepper, grated nutmeg, and egg yolks.

Shape and bake

  1. Form the mixture into small cakes, about 2 inches long and 1 inch wide.

  2. Place the cakes on a buttered baking sheet.

  3. Brush the tops with the beaten egg mixed with cold water.

  4. Bake in a moderate oven at 350°F (175°C) until golden brown.

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. Potato + nutmegtop 8% of all pairs
    Smell alikemoderate
    Cooked together1,052 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  2. White pepper + nutmegtop 13% of all pairs
    Smell alikelow
    Cooked together1,375 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

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

  4. Butter + nutmegtop 16% of all pairs
    Smell alikemoderate
    Cooked together24,377 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Butter + eggtop 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

Potatoes
Form the starchy base that gives the piped cakes their soft, light body.
Butter
Adds fat for richness and a smooth, tender texture.
Egg yolks
Add richness and help bind the mashed potato so it holds its shape.
Beaten egg
Brushed on top to promote even browning and a glossy golden finish.

The step that matters

Mash the potatoes while hot. Hot potatoes mash smoothly and absorb butter and yolks evenly. Cooled potatoes turn stiff and gluey, making the mixture hard to shape and giving a heavier texture.

Swap the white pepper

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

  1. Cinnamonfits better
  2. Parsleyfits better
  3. Thymefits better
  4. White pepperthe original

Fit is the average pairing score against potato, butter, nutmeg, egg. 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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