Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Potato Biscuit
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat oven to 400°F (200°C).
Sift flour with baking powder.
Rub in lard until well combined.
Make the dough
Cream steamed sweet potatoes, butter, and sugar until light and fluffy.
Add potato mixture to flour mixture.
Mix in enough sweet milk to form a dough.
Shape dough and place on baking sheet.
Bake and serve
Bake until golden brown.
Serve hot.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + sweet potatotop 9% of all pairsSmell alikemoderateCooked together627 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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
- All-purpose flour
- Forms the main structure of the biscuit as its proteins and starch set in the oven.
- Lard
- Rubbed into the flour to create tenderness and a flaky, short texture.
- Sweet potatoes
- Add moisture, body and natural sweetness to the dough.
- Butter
- Adds richness and flavour and helps the biscuit brown.
- Baking powder
- Releases gas in the dough to help the biscuits rise in the oven.
The step that matters
Rub in lard until well combined. Fat coats flour particles and limits gluten formation, so the fat should be worked in evenly and not overmixed. Overworking the dough makes biscuits tough rather than tender.
Swap the sweet potato
How well each one fits the dish's main ingredients (flour, butter, sugar, milk):
- Arrowrootfits about as well
- Sweet potatothe original
- Potatofits about as well
- Leekfits about as well
Fit is the average pairing score against flour, butter, sugar, milk. 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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