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Bread

Boston Brown Bread

A dense, sweet bread made with cornmeal, rye, wheat flour, molasses, sour milk, and raisins, steamed then baked.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Boston Brown Bread

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Sift together cornmeal, rye flour, whole wheat flour, salt, and baking soda in a bowl.

  2. Grease four one-pound baking pans.

Make and cook the bread

  1. Add molasses, sour milk, and raisins to the dry ingredients and stir quickly to form a smooth batter.

  2. Pour the batter into the prepared cans and cover them.

  3. Steam the covered cans for 2½ hours.

  4. Remove the covers and bake in a 350°F (175°C) oven for 30 minutes.

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 + raisintop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Rye + wheattop 1% of all pairs
    Smell alikestrong
    Cooked together404 recipes

    Shared aroma: coumarin (sweet, hay).

  3. Wheat + milktop 6% of all pairs
    Smell alikemoderate
    Cooked together2,418 recipes

    Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Rye + raisintop 11% of all pairs
    Smell alikemoderate
    Cooked together50 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

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

What each ingredient does

Cornmeal
Gives the bread its coarse, crumbly body and characteristic grainy texture.
Rye flour
Adds earthy flavor and a moist, dense crumb with less gluten structure.
Whole wheat flour
Contributes nutty flavor and extra body, helping the loaf hold together.
Baking soda
Reacts with the acidic sour milk and molasses to produce gas that lightens the batter.
Molasses
Adds sweetness, dark color, and moisture while promoting browning.
Sour milk
Its acidity activates the baking soda and tenderizes the crumb.

The step that matters

Stirring the batter quickly. Once the sour milk meets the baking soda, gas starts forming right away and the batter begins to rise. Stirring only until smooth and then steaming promptly keeps that lift in the loaf rather than losing it while you work.

“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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