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Dessert

Potato Flour Cake

A cake made with potato flour, eggs, sugar, baking powder, salt, and optional flavoring, baked at 300°F.

From an old cookbook · modernised transcription
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Potato Flour Cake

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 300°F (150°C).

Make the batter

  1. Beat the egg yolks thoroughly and gradually add the sugar.

  2. Beat the egg whites until very stiff and fold them into the yolk and sugar mixture.

  3. Gently fold in the potato flour, baking powder, and flavoring.

Bake

  1. Pour the batter into a greased cake pan and bake for about 30 minutes.

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. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Egg + potatotop 29% of all pairs
    Smell alikemoderate
    Cooked together4,978 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

Egg and flour barely smell alike, yet cooks put them together in 106,462 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

Eggs
Whipped whites trap air for lift, and yolks add richness and structure to the crumb.
Sugar
Sweetens the cake and helps stabilize the beaten egg yolks.
Potato flour
Provides the starch that sets the crumb once heated, giving a tender texture.
Baking powder
Releases gas in the batter to help the cake rise in the oven.

The step that matters

Folding in the egg whites. Stiff whites hold the air that lifts the cake. Overmixing or deflating them while folding makes the cake dense, so fold gently just until no white streaks remain.

Swap the potato

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

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Shallotfits better
  4. Potatothe original

Fit is the average pairing score against egg, sugar, 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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