Why it works: Milk and butter 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 ↓
Brown Bread
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Combine sour milk, salt, baking soda, sugar, graham flour, and melted butter in a bowl.
Bake and cool
Fill three 1‑lb baking powder cans half full with the mixture and cover them.
Bake for 1 to 1.5 hours, depending on the heat of the oven.
Let cool in the cans with the covers off.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Milk + buttertop 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).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Sour milk
- Its acidity reacts with the baking soda to produce gas, which lifts the bread.
- Baking soda
- Reacts with the acidic sour milk to leaven the bread without yeast.
- Graham flour
- Provides the bulk and coarse, nutty texture of the loaf.
- Sugar
- Adds sweetness and helps the crust brown during baking.
- Melted butter
- Adds fat for a tender crumb and richer flavour.
The step that matters
Baking time in the cans. Baking soda reacts with sour milk as soon as it is mixed, so the batter should go into the oven promptly. Bake the loaves until fully set through the centre, since the time varies with oven heat and an underbaked centre will be dense and gummy.
“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.
More brown bread recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Cornbread345 recipes
Bread Pudding336 recipes
Milk Bread Rolls242 recipes
Potato Bread124 recipes