Name: Boston Brown Bread
Ingredients: 3 cups cold water; 1 cup molasses; 2 cups wheat flour; 3 cups cornmeal; 6 teaspoons baking powder

Why it works: Wheat and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 4,373 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Boston Brown Bread

Oven, in the book's wordsA brisk oven

Ingredients

Directions

Stir together the cold water and molasses.
Add the wheat flour, cornmeal, and baking powder; mix well.
Steam the mixture for 3 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.

Wheat + flourtop 12% of all pairs

Smell alikemoderate

Cooked together4,373 recipes

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

Smell alikemoderate

Cooked together10,429 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Molasses + wheattop 24% of all pairs

Smell alikelow

Cooked together702 recipes

Shared aroma: furaneol (caramel, strawberry).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Wheat flour: Provides gluten-based structure and a chewy, hearty crumb.
Cornmeal: Adds coarse texture and a grainy body to the loaf.
Molasses: Adds sweetness, moisture and the dark color of the bread.
Baking powder: Releases gas as it reacts with moisture, helping the bread rise.

“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.