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 gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Boil the potatoes with their skins on until tender.
Remove the potatoes with a skimmer, drain, and squeeze them dry with a towel.
Peel the potatoes and mash them until smooth.
Make the dough
Add the butter, egg, and sweet milk to the mashed potatoes and mix well.
Let the mixture cool, then beat in the yeast.
Gradually add flour until a stiff dough forms.
Allow the dough to rise until doubled in size.
Shape the dough into small cakes and let them rise again.
Bake
Bake in a preheated oven at 400°F (200°C) until golden brown.
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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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, 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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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Potatoes
- Provide the starchy base that gives the biscuits their soft, moist crumb.
- Egg
- Adds structure and richness, helping the dough hold its shape while baking.
- Sweet milk
- Adds moisture and softness, and contributes to browning through milk sugars.
- Butter
- Adds fat for tenderness and flavour in the finished biscuit.
- Yeast
- Produces gas as it feeds on sugars, making the dough rise and become airy.
- Flour
- Forms the gluten network that gives the dough its stiff, elastic structure.
The step that matters
Let the dough rise until doubled. Yeast needs time and warmth to produce enough gas for the dough to expand. Under-proofed dough bakes dense, while over-proofed dough can collapse and lose its structure.
Swap the potato
How well each one fits the dish's main ingredients (butter, egg, milk, flour):
- Chivefits about as well
- Potatothe original
- Leekfits about as well
- Asparagusfits about as well
Fit is the average pairing score against butter, egg, milk, 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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