Why it works: Milk and butter 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
Make the dough
Scald the milk.
Add butter, sugar, and salt.
Let cool until lukewarm.
Add the dissolved yeast and enough flour to make a soft dough.
Knead for 20 minutes.
Let the dough rise until it doubles in size.
Shape and rise
Shape into rolls.
Let the rolls rise for 1 to 1½ hours.
Bake and finish
Bake in a 400°F (200°C) oven for 20 minutes.
Brush with milk or melted butter.
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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Milk + buttertop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsAroma overlaplowMentioned together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsAroma overlapmoderateMentioned together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Sugar + buttertop 17% of all pairsAroma overlapmoderateMentioned together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Butter and flour 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
- Flour
- Builds the gluten network that traps gas and gives the rolls their structure.
- Yeast
- Produces carbon dioxide gas that makes the dough rise and turn light.
- Milk
- Adds softness and richness, and its sugars and proteins help the crust brown.
- Butter
- Adds fat that tenderises the crumb and carries flavour.
- Sugar
- Feeds the yeast and adds sweetness and browning to the crust.
The step that matters
Let the milk cool until lukewarm before adding the yeast. Yeast is a living organism that is killed by hot liquid. If the scalded milk is still hot when the dissolved yeast goes in, the dough may fail to rise, so it must cool to a warm temperature first.
“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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