Name: Boston Brown Bread
Ingredients: 1 cup rye meal; 1 teaspoon salt; 1 cup granulated corn meal; ½ cup molasses; 1 cup graham flour; 2 cups sour milk or 1½ cups sweet milk or water; 2 teaspoons baking soda

Why it works: Rye and corn work together. They rank in the top 7% of all ingredient pairs, and cooks put them together in 182 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Boston Brown Bread

Oven, in the book's wordsA slow oven

Ingredients

Directions

Mix and fill

Mix and sift the dry ingredients together.
Add the molasses and milk, stirring until well combined.
Pour the mixture into a greased mold (a one-pound baking-powder can works well).

Steam

Steam for three and a half hours, ensuring the cover is buttered and tied down.
Do not fill the mold more than two-thirds full.
Place the mold on a trivet or saucer in a kettle of boiling water, allowing the water to come halfway up the mold.
Cover closely and steam, adding more boiling water as needed.

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.

Rye + corntop 7% of all pairs

Smell alikemoderate

Cooked together182 recipes

Shared aroma: acetic acid (sour, vinegar).
Rye + flourtop 8% of all pairs

Smell alikestrong

Cooked together1,320 recipes

Shared aroma: isobutyraldehyde (malty, green).
Corn + milktop 10% of all pairs

Smell alikemoderate

Cooked together6,955 recipes

Shared aroma: hexanal (green, grassy).
Rye + milktop 12% of all pairs

Smell alikemoderate

Cooked together918 recipes

Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
Corn + flourtop 13% of all pairs

Smell alikemoderate

Cooked together6,165 recipes

Shared aroma: isobutyraldehyde (malty, green).

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

What each ingredient does

Rye meal: Provides the dense, hearty body and the characteristic earthy flavor of the bread.
Granulated corn meal: Adds a coarse, crumbly texture that keeps the steamed loaf from becoming gummy.
Graham flour: Supplies gluten-forming structure and a nutty, whole-grain flavor.
Molasses: Adds sweetness, dark color and moisture to the loaf.
Baking soda: Reacts with the acid in sour milk to release gas that lifts the batter.
Sour milk: Supplies moisture and the acid needed to activate the baking soda.

The step that matters

Do not fill the mold more than two-thirds full. The batter rises as the leavening gas forms during steaming, so it needs headroom. A fuller mold can overflow or push the lid off and leave the loaf dense at the top.

“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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Boston Brown Bread