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 ↓
Soda Biscuit
Ingredients
Directions
The book says “a rather hot 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 milk and dissolve the baking soda in it.
Stir in the sugar and add enough flour to form a stiff dough.
Knead the dough well, then roll it out thin.
Knead it again until smooth and light.
Bake
Roll it out to about ¼ inch thick, cut into cakes, and bake in a hot oven at 400°F (200°C).
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Baking soda
- Reacts with the milk and dissolves to produce gas that lightens the dough.
- Butter
- Adds fat for tenderness and richness in the finished biscuit.
- Sugar
- Adds sweetness and helps the biscuits brown in the oven.
- Flour
- Forms the dough's structure once kneaded and rolled.
- Milk
- Provides the liquid that hydrates the flour and dissolves the baking soda.
The step that matters
Kneading the dough. Kneading develops gluten in the flour, giving the dough the structure to hold its shape and rise. Kneading too little leaves the biscuits flat and crumbly, while kneading too much makes them 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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