Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 81,283 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Parker House Rolls
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the dough
Sift together flour, baking powder, salt, and sugar.
Mix in butter until crumbly.
In a separate bowl, beat the egg into the cold milk.
Add the milk mixture to the dry ingredients and stir until combined.
Shape and bake
Cut the dough with a large cutter and place on a baking sheet.
Spread the tops with melted butter.
Fold each roll in half.
Rub the tops with sweet milk.
Bake in a hot 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 aroma chemistry they share, and how many recipes mention both.
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Butter + milktop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsAroma overlaplowMentioned together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsAroma overlapmoderateMentioned together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsAroma overlaplowMentioned together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
- Provides the structure that holds the rolls together as they rise.
- Baking powder
- Releases gas in the oven, lifting the dough so the rolls rise and turn light.
- Butter
- Adds fat that tenderizes the crumb and richness to the rolls.
- Milk
- Supplies moisture that hydrates the flour and helps form the dough.
- Egg
- Adds structure and richness, binding the dough and enriching the crumb.
The step that matters
Bake in a hot oven until golden brown. A hot oven makes the baking powder release gas quickly for a good rise, and the milk-washed tops brown through the Maillard reaction. Pulling them too early leaves the centers dense.
“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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