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
The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the mixture
Boil hops in water for 10 minutes.
Peel and mash the cooked potatoes.
Add flour and salt to the mashed potatoes.
Strain the hop-water over the mixture, stirring until smooth.
Ferment
Let the mixture cool, then add a little cold yeast.
Jar up the mixture and let it sit for 2 days.
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.
-
Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Hops + flourtop 32% of all pairsSmell alikelowCooked together10 recipes
Shared aroma: eugenol (clove, spicy).
-
Hops + potatotop 39% of all pairsSmell alikelowCooked together3 recipes
Shared aroma: myrcene (balsamic, herbaceous).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Its proteins form gluten, giving the dough structure and chew.
- Potatoes
- Their starch and moisture soften the dough and provide food for the yeast.
- Yeast
- Ferments sugars and produces gas, which makes the dough rise.
The step that matters
Let the mixture cool before adding the yeast. Yeast is killed by high heat, so adding it to a hot mixture can stop the fermentation before it starts. Cooling keeps the yeast alive so it can leaven the dough.
Swap the potato
How well each one fits the dish's main ingredients (hops, flour):
- Mustardfits better
- Arrowrootfits better
- Parsnipfits better
- Potatothe original
Fit is the average pairing score against hops, 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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