Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Potato Cake
Ingredients
Directions
The book says “a rather quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Mix and bake
In a bowl, mix the potato flour, butter, caster sugar, eggs, and lemon extract.
Beat the mixture thoroughly for 10 minutes.
Pour the batter into a cake tin.
Bake for 15 minutes.
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 + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + lemontop 12% of all pairsSmell alikemoderateCooked together2,230 recipes
Shared aroma: 2-nonenal (fatty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potato flour
- Provides the starch that forms the cake's bulk and crumb, since it contains no gluten.
- Butter
- Adds fat that gives the cake richness and a tender texture.
- Caster sugar
- Sweetens the batter and helps keep the crumb soft and moist.
- Eggs
- Bind the batter, add moisture, and help set the structure as the cake bakes.
The step that matters
Beat the mixture thoroughly for 10 minutes. Beating traps air in the butter, sugar and egg mixture, which helps the cake rise and become light. Because the potato flour has no gluten, the eggs and air do most of the structural work, so the batter should be well combined and aerated before it goes into the tin.
Swap the potato
How well each one fits the dish's main ingredients (flour, butter, sugar, egg, lemon):
- Arrowrootfits better
- Shallotfits better
- Leekfits better
- Potatothe original
Fit is the average pairing score against flour, butter, sugar, egg, lemon. 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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