Why it works: Flour and buttermilk are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 3,721 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Bran Bread
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Sift together flour, baking powder, and salt.
Add bran and brown sugar to the dry ingredients.
Dissolve baking soda in molasses and add to buttermilk.
Mix the wet ingredients with the dry ingredients until well combined.
Bake
Pour the batter into a greased pan and bake for 1½ hours in a slow oven at 300°F (150°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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Flour + buttermilktop 8% of all pairsSmell alikemoderateCooked together3,721 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Sugar + buttermilktop 9% of all pairsSmell alikestrongCooked together2,973 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Molasses + buttermilktop 11% of all pairsSmell alikemoderateCooked together526 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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 acid in buttermilk and molasses to produce gas that lifts the bread.
- Buttermilk
- Its acidity activates the baking soda and adds tenderness and moisture to the crumb.
- Baking powder
- Provides additional lift as the batter heats in the oven.
- Molasses
- Adds sweetness, moisture, and deep flavour, and its acidity helps activate the baking soda.
- Cooking bran
- Adds fibre, texture, and a hearty structure to the crumb while absorbing liquid.
The step that matters
Mix the wet ingredients with the dry ingredients until well combined.. Once the leavening acids and bases meet, gas forms quickly, so the batter should be combined promptly and only until smooth. Overmixing develops gluten and can make the bread tough and dense.
“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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