Name: Boston Brown Bread
Ingredients: 2 cups corn meal; 2 cups graham flour; 1 cup white flour; ¼ teaspoon salt; 1 cup molasses; 3 cups sour milk; 1 teaspoon baking soda

Why it works: Corn and milk are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 6,955 recipes. Both carry hexanal, which smells green, grassy. The science ↓

Boston Brown Bread

Oven, in the book's wordsA hot oven

Ingredients

Directions

Mix the batter

Combine corn meal, graham flour, white flour, salt, molasses, sour milk, and baking soda in a large bowl, then mix until well combined.

Steam

Pour the mixture into a steamer.
Steam for four hours.

Recipe from a historical cookbook (Internet Archive).

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.

Corn + milktop 10% of all pairs

Smell alikemoderate

Cooked together6,955 recipes

Shared aroma: hexanal (green, grassy).
Corn + flourtop 13% of all pairs

Smell alikemoderate

Cooked together6,165 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + milktop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + molassestop 16% of all pairs

Smell alikemoderate

Cooked together10,429 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Molasses + milktop 21% of all pairs

Smell alikelow

Cooked together7,243 recipes

Shared aroma: furaneol (caramel, strawberry).

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

Corn meal: Gives the bread its coarse, grainy structure and texture.
Graham flour: Adds a hearty, nutty texture and a wholesome, dense crumb.
White flour: Provides gluten for structure so the steamed loaf holds together.
Molasses: Adds sweetness, dark color, and moisture to the loaf.
Sour milk: Supplies acidity that reacts with the baking soda and adds moisture.
Baking soda: Reacts with the acid in the sour milk to produce gas that lifts the batter.

“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.