Name: Graham Bread
Ingredients: 2 cups sour milk; 1 teaspoon baking soda; ¼ teaspoon salt; a little molasses; flour (enough to thicken)

Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Graham Bread

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

Preheat the oven to 300°F (150°C).

Make the batter

In a bowl, combine sour milk, baking soda, salt, and molasses.
Stir in enough flour to thicken the mixture.
Pour the batter into a greased baking pan.

Bake

Bake for 1.5 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.

Milk + flourtop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

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

Smell alikemoderate

Cooked together10,429 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Milk + molassestop 21% of all pairs

Smell alikelow

Cooked together7,243 recipes

Shared aroma: furaneol (caramel, strawberry).

Milk and flour 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

Sour milk: Its acidity reacts with the baking soda to produce gas that lifts the loaf.
Baking soda: Reacts with the acid in sour milk to release carbon dioxide, causing the bread to rise.
Flour: Provides the structure that sets the batter into a loaf as it bakes.
Molasses: Adds sweetness, dark colour and a rich flavour to the bread.

“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.