Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Sweet Tart-paste
Ingredients
Directions
In a bowl, mix the flour and butter with your hands until combined.
Add the egg yolk and powdered sugar, mixing well.
Gradually add the milk and knead into a paste.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- All-purpose flour
- Provides the structure that holds the paste together as it sets.
- Unsalted butter
- Coats the flour particles, adding fat that makes the paste tender and short.
- Egg yolk
- Adds richness and helps bind the dough, contributing fat and emulsifiers.
- Powdered sugar
- Adds sweetness and dissolves easily, softening the texture of the paste.
- Milk
- Supplies moisture that hydrates the flour so the dough can come together.
The step that matters
Gradually add the milk and knead into a paste.. Adding milk slowly lets the flour absorb it evenly. Too much liquid at once makes the paste sticky, while overworking the dough develops gluten and makes it tough.
“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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