Why it works: Flour and sugar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and 92,116 recipes mention both. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓
Dick Bennet's Receipt for Yeast
Ingredients
Directions
Prepare the potatoes
Peel the potatoes.
Boil the potatoes with the hops in enough water to cover them.
Once tender, strain the water and mash the potatoes.
Return the mashed potatoes to the cooking water and mix well.
Make the batter
Add flour, sugar, and salt to the mixture.
Cook for a few minutes while adding enough flour to make a thin batter.
Let the mixture cool until lukewarm.
Add the yeast and mix well.
Ferment and store
Transfer the mixture to a stone jar.
Cover the jar.
Let it stand in a warm place for 12 hours, stirring three times.
Place a weight on the lid.
Store in a cool place.
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 aroma chemistry they share, and how many recipes mention both.
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Flour + sugartop 15% of all pairsAroma overlapmoderateMentioned together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Potato + flourtop 15% of all pairsAroma overlapmoderateMentioned together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + sugartop 30% of all pairsAroma overlaplowMentioned together3,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Hops + flourtop 32% of all pairsAroma overlaplowMentioned together10 recipes
Shared aroma: eugenol (clove, spicy).
-
Potato + hopstop 39% of all pairsAroma overlaplowMentioned 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
- Potatoes
- Provide starch and body, which the yeast feeds on as the starter ferments.
- Yeast
- Ferments the sugars in the mixture, producing gas that makes the starter active and bubbly.
- Sugar
- Gives the yeast an easily used food source to speed up fermentation.
- Flour
- Thickens the mixture into a thin batter that gives the yeast starch to work on.
- Hops
- Adds bitter, aromatic flavour and helps preserve the starter against spoilage.
The step that matters
Let the mixture cool until lukewarm before adding the yeast. Yeast is killed by high heat, so adding it to a hot mixture can stop fermentation before it starts. Lukewarm is warm enough to activate the yeast without harming it.
Flavor stand-ins for the potato
How well each one fits the dish's main ingredients (hops, flour, sugar):
- Mustardbetter flavor fit
- Arrowrootbetter flavor fit
- Parsnipbetter flavor fit
- Potatothe original
Fit is the average pairing score against hops, flour, sugar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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