Name: Boston Brown Bread
Ingredients: 1 cup white flour; 1 cup rye flour; 1½ cups graham flour; 3 cups cornmeal; 1 cup molasses; 2 cups water; 1 teaspoon baking soda

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

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.

Make the batter

Sift the white flour, rye flour, and graham flour together.
Add the molasses, water, and baking soda to the sifted flours, then mix thoroughly until well combined.

Bake

Pour the batter into molds.
Bake in a moderate oven at 350°F (175°C) until done.

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.

Flour + ryetop 8% of all pairs

Smell alikestrong

Cooked together1,320 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + molassestop 16% of all pairs

Smell alikemoderate

Cooked together10,429 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Rye + molassestop 16% of all pairs

Smell alikelow

Cooked together804 recipes

Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

White flour: Provides gluten-forming structure that holds the loaf together.
Rye flour: Adds flavor and a denser, moist crumb with less gluten structure.
Graham flour: Adds coarse bran texture and a nutty, hearty flavor.
Cornmeal: Adds a coarse, slightly crumbly texture and body to the bread.
Molasses: Adds sweetness, dark color, moisture, and acidity that reacts with the baking soda.
Baking soda: Reacts with the acidic molasses to release gas that lifts and lightens the batter.

The step that matters

Get the batter into the oven promptly after mixing. Baking soda starts reacting as soon as it meets the acidic molasses and liquid, releasing gas. Waiting too long before baking lets that gas escape, so the bread rises less and may turn out heavy.

“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.

More boston brown bread recipes

Ice Cream 3 See all 349 →

Cornbread345 recipes

Bread Pudding336 recipes

Milk Bread Rolls242 recipes

Potato Bread124 recipes

Like knowing why a recipe works?

The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.

Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Boston Brown Bread