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 Crust
Ingredients
Directions
Boil and mash the potatoes until fine.
Mix in the cream and salt.
Add flour gradually until the dough can be rolled.
Handle the dough as little as possible.
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 + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cream + potatotop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Cream + flourtop 20% of all pairsSmell alikemoderateCooked together30,481 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide starch and bulk, giving the dough its body and a tender texture.
- Cream
- Adds fat and moisture, making the dough richer and softer to handle.
- Flour
- Adds structure, letting the dough hold together so it can be rolled out.
The step that matters
Handle the dough as little as possible. Overworking dough develops gluten in the flour, making the crust tough and chewy rather than tender. Adding flour gradually and stopping once it can be rolled keeps it short.
Swap the potato
How well each one fits the dish's main ingredients (cream, flour):
- Arrowrootfits better
- Leekfits better
- Spinachfits better
- Potatothe original
Fit is the average pairing score against cream, 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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