Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Cherry Roll
Ingredients
Directions
Prepare the dough
Mash the potatoes until smooth.
Add the butter and salt, then mix in enough flour to form a paste.
Roll the mixture into a strip that is longer than it is wide.
Fill and roll
Place the fruit over the rolled mixture.
Roll it up and tie it in a floured cloth bag.
Boil and serve
Boil steadily for 1 hour in water that is boiling when the bag is added.
Serve with sauce.
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 their aromas overlap, and how often cooks already put them together.
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they 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
- Irish potatoes
- Form the bulk of the dough, giving it a soft, starchy body once mashed.
- Butter
- Adds fat and richness, softening the dough and adding flavour.
- Flour
- Binds the mashed potato into a workable paste that holds its shape when rolled.
- Fruit
- Provides the sweet, moist filling that cooks inside the roll.
The step that matters
Keep the water at a steady boil. Adding the bag to water that is already boiling and keeping it boiling steadily lets the roll cook evenly and stay firm. Water that drops below a boil can make the dough heavy and waterlogged.
Swap the potato
How well each one fits the dish's main ingredients (butter, flour):
- Shallotfits better
- Leekfits better
- Arrowrootfits better
- Potatothe original
Fit is the average pairing score against butter, flour. Candidates are from the same food group and used in at least 100 recipes.
“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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