Why it works: Milk and butter 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 ↓
Breakfast or Tea 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.
Make the dough
Soak the yeast in warm milk or water until soft.
Add the mashed potatoes, salt, and enough flour to make a stiff batter.
Beat well for 5-10 minutes.
Let rise in a warm place.
Mix in more flour until you have a soft, elastic dough that doesn't stick to the board.
Let the dough rise until doubled in size.
Push down the dough.
Let rise again.
Repeat the rising process 2-3 times.
Knead in the butter, sugar, baking soda dissolved in warm water, and beaten egg white thoroughly.
Shape and bake
Roll the dough to ½ inch thick.
Spread with melted butter.
Cut with a cookie cutter.
Fold the cut pieces so the edges nearly meet.
Place in buttered tins.
Let rise until very light.
Bake at 400°F (200°C).
Serve in a folded napkin.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + potatotop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Flour + buttertop 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).
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
- Yeast
- Ferments the dough, producing gas that makes it rise and become light.
- Potatoes
- Add moisture and softness to the dough, helping it stay tender.
- Flour
- Forms the gluten structure that gives the dough its elastic stretch and shape.
- Butter
- Adds fat for richness and a tender crumb, and browns the surface.
- Egg white
- Adds structure and helps bind the dough as it is kneaded.
- Sugar
- Feeds the yeast and adds sweetness and browning.
The step that matters
Knead the dough until the potatoes, lard and egg are fully incorporated. Rising depends on gluten and yeast being evenly distributed. Unmixed pockets of baking soda or egg white can leave dense spots or uneven rise, so the dough should be kneaded thoroughly before shaping.
Swap the potato
How well each one fits the dish's main ingredients (milk, flour, butter, sugar, egg):
- Sweet potatofits about as well
- Leekfits about as well
- Arrowrootfits about as well
- Potatothe original
Fit is the average pairing score against milk, flour, butter, sugar, egg. 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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