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 Rolls
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 the potatoes
Boil or steam potatoes until tender.
Mash them with butter, milk, and salt.
Rub through a colander.
While warm, mix mashed potatoes with an equal weight of dried flour.
Make and rise the dough
Dissolve yeast in warm milk or milk and water.
Mix thoroughly with the potato-flour mixture.
Knead dough well. Cover it.
Let it rise in a warm place for 30 minutes.
Shape and bake
Shape dough into rolls.
Bake in a preheated oven at 400°F (200°C) for 30 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.
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
- Mealy potatoes
- Their starch and low moisture give the rolls a soft, light crumb.
- Dried flour
- Provides the gluten and starch that give the dough its structure.
- Yeast
- Produces gas as it ferments, making the dough rise and become airy.
- Butter
- Adds fat for tenderness and a richer flavour and softness in the crumb.
- Milk
- Adds moisture and some sugars that help the rolls brown and taste mild and sweet.
The step that matters
Let it rise in a warm place for 30 minutes. Yeast needs warmth to ferment and trap gas in the dough. If the dough stays cold or rises too little, the rolls will be dense rather than light.
Swap the potato
How well each one fits the dish's main ingredients (butter, milk, flour):
- Potatothe original
- Arrowrootfits about as well
- Leekfits less well
- Shallotfits less well
Fit is the average pairing score against butter, 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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