Name: Steamed Bran Bread
Ingredients: ½ cup bran; 2 cups molasses; 1½ cups graham flour; 1⅓ cups hot water; ½ teaspoon salt; 1 teaspoon baking soda; 1 cup raisins

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 ↓

Steamed Bran Bread

Ingredients

Directions

Mix all ingredients, dissolving the baking soda in hot water before adding.
Pour the mixture into small greased tins.
Steam for 4 to 5 hours.

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 + raisintop 1% of all pairs

Smell alikestrong

Cooked together9,075 recipes

Shared aroma: isobutyraldehyde (malty, green).
Molasses + raisintop 12% of all pairs

Smell alikelow

Cooked together3,577 recipes

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

Smell alikemoderate

Cooked together10,429 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

Baking soda: Reacts with the molasses' acidity to release gas that lightens the batter.
Molasses: Provides sweetness, moisture, and dark color, and its acidity activates the baking soda.
Graham flour: Supplies the starch and gluten-forming protein that give the bread its body and structure.
Bran: Adds fiber-rich bulk that gives the bread a coarser, denser texture.
Raisins: Add pockets of chewy sweetness throughout the bread.

The step that matters

Dissolving the baking soda in hot water first. Baking soda must be evenly dispersed to react with the acidic molasses. Dissolving it first prevents pockets of unreacted soda, which would cause bitter spots and uneven rising.

“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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Steamed Bran Bread