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Bread

Boston Brown Bread

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

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Rye and flour match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,320 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Boston Brown Bread

Ingredients

Directions

Prepare the batter

  1. Sift together the cornmeal, rye flour, and graham flour.

  2. In a separate bowl, beat together the molasses, sweet milk, sour milk, baking soda, and salt.

  3. Combine the wet and dry ingredients until well mixed.

Steam and finish

  1. Pour the mixture into a tin form, ensuring it is not full.

  2. Steam for 4 hours, keeping the water boiling.

  3. Before serving, place in the oven for a short time to dry.

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. Rye + flourtop 8% of all pairs
    Smell alikestrong
    Cooked together1,320 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Coffee + milktop 10% of all pairs
    Smell alikemoderate
    Cooked together2,202 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

  3. Rye + milktop 12% of all pairs
    Smell alikemoderate
    Cooked together918 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: ethanol (alcoholic, ethereal).

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 and corn flavour that give the bread its structure.
Rye flour
Adds earthy flavour and some gluten-light structure alongside the cornmeal.
Graham flour
Contributes bran and nutty flavour and helps give the loaf a hearty texture.
Molasses
Adds sweetness, dark colour, and moisture, and gives the bread its characteristic flavour.
Baking soda
Reacts with the acidic sour milk to produce gas that lightens the batter.
Sour milk
Its acidity activates the baking soda for rising and adds tang and tenderness.

The step that matters

Keep the tin not full and the water boiling during steaming. The batter rises as the baking soda reacts and gas expands, so a full tin can overflow or turn heavy. Steady boiling keeps the steam constant so the bread cooks through evenly without drying or sinking.

“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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