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Potato Yeast

A yeast starter made from boiled and mashed potatoes, flour, water, yeast, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Potato Yeast

Why it works: Potato and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 5,355 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Potato Yeast

Ingredients

Directions

  1. Boil the potatoes and mash them.

  2. Add the flour and enough water to make a thick batter.

  3. Stir in the yeast and salt.

  4. When the mixture is light, transfer it to a jar and cover it.

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.

Photo for illustrative purposes only · Contact us to use it

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

    Shared aroma: isobutyraldehyde (malty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Potatoes
Add starch and moisture to the batter, giving the starter body and material for the yeast.
Flour
Provides starch and proteins that thicken the batter and feed the yeast.
Yeast
Ferments sugars and produces gas, making the mixture rise and turn light.

The step that matters

Transfer when the mixture is light. Wait until the mixture is light before moving it to a jar. Rising shows the yeast has been fermenting and producing gas, so covering it too early means less active culture.

“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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