Name: Boston Brown Bread
Ingredients: 2 cups cornmeal; 2 cups graham flour; 1 cup molasses; 1 teaspoon salt; 2 teaspoons baking soda; 3 cups buttermilk

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 ↓

Boston Brown Bread

Ingredients

Directions

Make the batter

In a bowl, mix the cornmeal, graham flour, salt, and baking soda together.
Gradually add the molasses and buttermilk, mixing until combined.

Steam and serve

Fill a mold two-thirds full with the batter.
Steam in a single mold for 6 hours or in small molds for 2 to 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.

Flour + buttermilktop 8% of all pairs

Smell alikemoderate

Cooked together3,721 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Molasses + buttermilktop 11% of all pairs

Smell alikemoderate

Cooked together526 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Flour + molassestop 16% of all pairs

Smell alikemoderate

Cooked together10,429 recipes

Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

Cornmeal: Provides the coarse, sturdy body and hearty texture of the bread.
Graham flour: Adds structure and a nutty, wholesome texture to the batter.
Molasses: Contributes sweetness, dark color, and a rich, deep flavor.
Buttermilk: Supplies moisture and acidity that reacts with the baking soda.
Baking soda: Reacts with the acidic buttermilk to produce gas that lifts the batter.

The step that matters

Filling the mold two-thirds full. Batter rises as it steams and the baking soda releases gas, so leaving room in the mold lets the bread expand without overflowing or becoming 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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Boston Brown Bread