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Bread

Boston Brown Bread

A steamed and baked rye‑cornbread with molasses and sour milk.

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

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Make the batter

  1. Mix the rye meal, cornmeal, flour, and salt in a bowl.

  2. Dissolve the baking soda in 2 tablespoons of boiling water.

  3. In another bowl, combine the molasses and sour milk, then stir in the dissolved baking soda.

  4. Beat the egg and add it to the mixture.

  5. Pour the wet ingredients into the dry ingredients and mix thoroughly.

  6. Pour the batter into a well‑buttered 2‑quart mold.

Steam and bake

  1. Steam the bread for 4 hours.

  2. After steaming, 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. 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 + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Molasses + flourtop 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

All-purpose flour
Provides the main gluten structure that holds the dense loaf together.
Rye meal
Adds a earthy flavor and a dense, moist crumb.
Cornmeal
Gives the bread a coarse, tender texture and grainy body.
Molasses
Adds sweetness, moisture, and the dark color of the crumb.
Sour milk
Its acidity reacts with baking soda and adds moisture to the batter.
Baking soda
Reacts with the acid in the sour milk and molasses to release gas that lifts the batter.

The step that matters

Combine the baking soda with the wet ingredients and mix into the batter promptly. Baking soda reacts with the acids in sour milk and molasses to release carbon dioxide. Gas is produced right away, so delaying the mixing lets it escape before the batter sets, leaving a denser loaf.

“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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