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 ↓
Hot Cross Buns
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the dough
Preheat your oven to 400°F (200°C).
Rub the butter into the flour.
Add the currants, sultanas, and candied peel.
Make a hole in the center and add the barm mixed with a little warm water.
Knead into a light dough with more warm water.
Shape and bake
Once risen, divide the dough into 4 oz. portions and shape into buns.
Cut a cross on each bun.
Mix the beaten egg, sugar, and milk, then wash over the buns.
Bake in the preheated oven 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.
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).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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
- Flour
- Provides the structure that the dough builds around as it kneads and rises.
- Barm
- Yeast that ferments the dough, producing gas that makes the buns rise and become light.
- Butter
- Adds fat that tenderises the crumb and gives a richer texture.
- Castor sugar
- Sweetens the dough and feeds the yeast, helping browning in the oven.
- Currants
- Add concentrated sweetness and fruit flavour throughout the buns.
- Beaten egg
- Glaze that browns the surface and gives the buns a glossy finish.
The step that matters
Letting the buns rise before shaping and baking. Yeast needs time to ferment and build gas in the dough. Shaping or baking before the dough has risen produces dense buns that do not spring up in the oven.
Swap the currant
How well each one fits the dish's main ingredients (flour, sugar, butter, egg, milk):
- Vanillafits better
- Raisinfits better
- Figfits better
- Currantthe original
Fit is the average pairing score against flour, sugar, butter, egg, milk. 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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