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
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.
Make the dough
In a large bowl, combine the skimmed milk, egg, and butter.
Add enough flour to create a smooth dough.
Dissolve the yeast in the mixture and knead until smooth.
Rise
Cover the dough and let it rise for 5 hours.
Shape and bake
Preheat the oven to 400°F (200°C).
Shape the dough into rolls and place them on a baking sheet.
Bake for 45 minutes 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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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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Egg + flourtop 15% of all pairsAroma overlaplowMentioned together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsAroma overlapmoderateMentioned together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Skimmed milk
- Hydrates the flour so gluten can form, and keeps the rolls soft.
- Egg
- Adds richness and helps bind the dough.
- Butter
- Adds fat that tenderizes the crumb and enriches the flavor.
- Flour
- Provides the structure as its proteins form gluten when kneaded.
- Yeast
- Produces gas that makes the dough rise.
The step that matters
Let the dough rise fully. Yeast releases carbon dioxide as it ferments, which inflates the gluten network. Rising long enough builds an airy, light crumb, while a short rise leaves the rolls 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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