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Bread

Boston Brown Bread

A steamed bread made with cornmeal, graham flour, molasses, sour milk, baking soda, and salt.

From an old cookbook · modernised transcription
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Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Boston Brown Bread

Oven, in the book's wordsA very moderate oven

Ingredients

Directions

Make the batter

  1. Mix cornmeal, graham flour, baking soda, and salt in a bowl.

  2. Add molasses and sour milk or buttermilk, and stir thoroughly.

Steam

  1. Pour the mixture into a well-greased mold.

  2. Cover the mold closely and steam for 4 to 5 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.

  1. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + molassestop 16% of all pairs
    Smell alikemoderate
    Cooked together10,429 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. 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

Cornmeal
Provides the coarse, crumbly body that gives the bread its structure.
Graham flour
Adds gluten-forming structure and a nutty, wholesome texture to the loaf.
New orleans molasses
Adds sweetness, dark color, and moisture to the bread.
Sour milk or buttermilk
Its acidity reacts with the baking soda to lift the batter and adds tenderness.
Baking soda
Reacts with the acidic milk to produce gas that makes the bread rise.

The step that matters

Cover the mold closely and steam. A tight cover keeps steam trapped around the mold so the bread cooks evenly and stays moist. If steam escapes, the water level drops and the loaf can dry out or cook unevenly over the long steaming time.

“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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