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Bread

Boston Brown Bread

A sweet, molasses‑flavored loaf made with brown and rye flours, cornmeal, and sweet milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Flour and rye 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.

Prepare

  1. Preheat the oven to 350°F (175°C).

Mix and bake

  1. In a large bowl, mix together the brown flour, rye flour, cornmeal, molasses, sweet milk, baking soda, and salt.

  2. Pour the mixture into a greased loaf pan.

  3. Bake for 1 hour, or longer if the loaves are thick.

  4. Check for doneness by inserting a toothpick; it should come out clean.

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 + ryetop 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

Brown flour
Provides the main structure and a hearty, wholesome texture.
Rye flour
Adds structure and a dense, moist crumb with a distinct flavor.
Cornmeal
Adds a coarse texture and a slightly grainy bite to the crumb.
Molasses
Adds sweetness, moisture, and the dark color typical of the bread.
Sweet milk
Hydrates the flours so they form a batter and softens the crumb.
Baking soda
Reacts with the molasses's acidity to produce gas that lifts the bread.

The step that matters

Checking for doneness. Because the batter is dense and moist, the centre can stay gummy even when the crust looks done. A toothpick inserted into the centre should come out clean before the bread is removed from the oven.

“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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