Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and 78,219 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Plain 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
Cool the scalded sweet milk until lukewarm, then dissolve the yeast and sugar in it.
Warm the flour in a pan, make a nest in the center, and pour the liquid mixture into it.
Stir with a spoon, gradually pulling in flour from the edges until about 2/3 of the flour is mixed in.
Add the melted shortening and salt, then knead the dough until smooth.
Place the dough in a small greased bowl, cover it, and set aside to rise until doubled in bulk.
Press the dough down, turn it over, and allow it to rise again.
For light rolls, press the dough down three times before shaping.
Shape and rise
Roll the dough out to a thickness of ½ inch and cut into round shapes.
Fold less than half the dough over in an envelope fashion and press the center down.
Grease the tops of the rolls, set aside to rise until doubled in size before baking.
Bake
Bake in a preheated oven at 400°F (200°C) for about 25 minutes.
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 aroma chemistry they share, and how many recipes mention both.
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Milk + flourtop 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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Milk + sugartop 18% of all pairsAroma overlaplowMentioned together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and flour share little aroma chemistry, yet 78,219 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
- Forms the gluten network that traps gas and gives the rolls their structure.
- Yeast
- Produces carbon dioxide as it ferments, making the dough rise and become light.
- Sweet milk
- Adds moisture and richness, and its sugars feed the yeast and help browning.
- Shortening
- Adds fat that tenderizes the crumb and softens the texture of the rolls.
- Sugar
- Feeds the yeast and adds sweetness and browning in the baked rolls.
The step that matters
Kneading until smooth, then letting the dough fully double. Kneading develops the gluten that holds gas, and rising until doubled gives the yeast time to build the airy crumb. Under-kneaded or under-risen dough bakes up 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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