Why it works: Potato and ginger work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 992 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Yeast Cakes
Ingredients
Directions
Make the hop liquid
Boil hops in water until the liquid is strong.
Add potatoes and boil until thoroughly done.
Remove potatoes, peel, and mash them finely.
Mix mashed potatoes with flour and strain in the hop liquid.
Add molasses, ginger, and salt; let cool.
Make the starter
Rub the mixture through a colander to reduce it to a fine pulp.
Add enough coarse sea salt and yeast to raise the mixture.
Let it stand in a large covered jar until it rises.
Shape and dry
Add more flour and mix with cornmeal until firm enough to handle.
Cut into slices and place on plates to dry.
Turn the cakes once on the first day, then twice daily until thoroughly dry.
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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Potato + gingertop 12% of all pairsSmell alikemoderateCooked together992 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Molasses + gingertop 14% of all pairsSmell alikelowCooked together4,116 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + molassestop 16% of all pairsSmell alikemoderateCooked together10,429 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hops
- Gives the liquid its bitter, aromatic flavour and helps preserve the mixture.
- Potatoes
- Supply starch and body, giving the mixture a thick, pulpy texture.
- Flour
- Adds starch and structure so the mixture can be shaped into firm cakes.
- Molasses
- Adds sweetness and depth of flavour, and feeds the yeast.
- Yeast
- Ferments the mixture so it rises, leavening the cakes.
The step that matters
Let the mixture rise fully before shaping. Yeast needs time and warmth to ferment the mixture; if it has not risen enough, the cakes stay dense and do not develop their light, open texture.
Swap the potato
How well each one fits the dish's main ingredients (hops, flour, molasses, ginger):
- Mustardfits better
- Arrowrootfits better
- Parsnipfits better
- Potatothe original
Fit is the average pairing score against hops, flour, molasses, ginger. 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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