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Bread

Boston Brown Bread

A steamed rye, corn, and graham flour bread sweetened with molasses.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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. Mix and sift the rye meal, cornmeal, graham flour, baking soda, and salt.

  2. Stir in the molasses and milk until well combined.

Steam

  1. Pour the mixture into a well-buttered mold, filling it no more than two-thirds full.

  2. Butter the cover and place it on the mold, tying it down with string.

  3. Steam for 3.5 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. Rye + flourtop 8% of all pairs
    Smell alikestrong
    Cooked together1,320 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Rye + molassestop 16% of all pairs
    Smell alikelow
    Cooked together804 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

Rye meal
Provides the classic earthy flavor and a dense, moist crumb.
Cornmeal
Adds coarse texture and body to the crumb.
Graham flour
Contributes structure and a nutty, wholesome flavor.
Baking soda
Reacts with the acidic molasses and sour milk to lift the batter.
Molasses
Adds sweetness, dark color, and moisture to the bread.
Milk
Hydrates the dry flours and binds the batter together.

The step that matters

Filling the mold no more than two-thirds full. The batter rises substantially while steaming. Overfilling can cause it to spill out or become dense and gummy, so leaving headroom lets it expand evenly.

“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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