Why it works: Flour and sugar 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 ↓
Home Made Yeast
Ingredients
Directions
The book says “a moderate oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.
Make the yeast
Scald 1 pint of flour with potato water.
Mix in ½ pint of mashed potatoes, ½ teaspoon salt, and 2 teaspoons granulated sugar.
Let the mixture cool, then add 1 cake of Royal Yeast dissolved in ½ cup lukewarm water.
Allow the mixture to ferment in a warm place for one day.
After fermentation, let it stand for one more day before using.
Make the bread
To make bread, use the yeast with 1 quart of water and enough flour to form a soft dough that doesn't stick to your hands.
Start by adding enough flour to the water to make a pancake batter, then add salt to taste and the liquid yeast, stirring thoroughly.
Gradually add more flour until the dough is not sticky.
Let the dough rise for 2 hours, then knead slightly and let it rise for another 1 to 1.5 hours until light.
Place the dough in pans and let it rise for 1 hour before baking in a moderate oven (350°F / 175°C) for 1 to 1.25 hours.
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.
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Flour + potatotop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Potato + sugartop 30% of all pairsSmell alikelowCooked together3,032 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Forms the starch structure of the dough and batter that sets when baked.
- Mashed potatoes
- Adds moisture and starch that feed the yeast and keep the bread soft.
- Royal yeast
- Ferments the mixture, producing gas that makes the dough rise.
- Granulated sugar
- Provides food for the yeast to speed up fermentation and adds mild sweetness.
The step that matters
Letting the dough rise until light. Yeast gas must be trapped by the gluten network in the dough; underproofed dough bakes dense, while overproofed dough collapses. Watching for a light, airy dough matters more than the clock.
Swap the potato
How well each one fits the dish's main ingredients (flour, sugar):
- Arrowrootfits better
- Beetrootfits better
- Sweet potatofits better
- Potatothe original
Fit is the average pairing score against flour, sugar. 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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