Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Soda Bread
Ingredients
Directions
Prepare
Reduce the tartaric acid and salt to a fine powder and mix them with the flour.
Dissolve the soda in the milk and pour it several times between two basins.
Mix and bake
Quickly work the milk mixture into the flour to form a light dough.
Divide the dough into 2 loaves and place them in a well-heated oven.
Bake for 1 hour.
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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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and milk barely smell alike, yet cooks put them together in 78,219 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
- Forms the main structure of the bread as its proteins and starch set around the air bubbles.
- Tartaric acid
- Reacts with the soda to release carbon dioxide, which lifts the loaves without yeast.
- Carbonate of soda
- Supplies the alkaline base that reacts with the acid to produce gas for rising.
- Milk
- Provides moisture to hydrate the flour and dissolves the soda so it can react evenly.
The step that matters
Working the milk into the flour quickly. The acid and soda begin releasing carbon dioxide as soon as they meet liquid. Mixing quickly and getting the loaves into the oven keeps that gas trapped in the dough, so the bread rises well instead of going flat.
“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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