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 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
Melt the butter in the warm milk.
Add the sugar, salt, and flour, then let it rise overnight.
In the morning, mix in the baking soda solution and enough flour to make a soft dough.
Shape and rise
Roll out the dough to ¼ inch thick and cut with a large round cutter.
Spread soft butter over the tops and fold each roll in half.
Place the rolls apart on a baking sheet and cover them.
Let them rise near a warm place for 15-20 minutes.
Bake
Bake in a preheated oven at 400°F (200°C) until golden.
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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Egg + flourtop 15% of all pairsAroma overlaplowMentioned together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Milk
- Provides moisture and liquid that hydrates the flour to form dough.
- Fresh yeast
- Ferments the dough, producing gas that makes the rolls rise and become airy.
- Flour
- Forms the gluten network that gives the dough its structure and chew.
- Butter
- Adds fat for tenderness and richness, and browns the tops of the rolls.
- Sugar
- Feeds the yeast and adds sweetness and browning to the crust.
- Baking soda
- Reacts with acidity in the dough to add a little extra lift and browning.
The step that matters
Letting the dough rise overnight. Slow fermentation lets yeast develop flavour and gives the gluten time to relax, so the dough becomes soft and airy. Rushing this stage leaves the rolls dense and flat.
“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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