Name: Breakfast Bread
Ingredients: 3 pounds flour; ¾ ounce German yeast; 2 mealy potatoes; 1 ounce butter; 1¼ pints new milk; 2 teaspoons coarse sea salt

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Breakfast Bread

Oven, in the book's wordsA quick oven

Ingredients

Directions

The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the dough

Boil and dry the potatoes.
Mash the potatoes with butter and salt.
Mix the potato mixture with the flour.
Prepare the yeast with half of the warm milk.
Strain the yeast into the flour, stirring slightly.
Cover and let the dough sit overnight.
Warm the remaining milk and mix it into the dough.
Set the dough in a warm place to rise for 30 minutes.

Shape and bake

Shape the dough into rolls and place them on warm baking sheets.
Cover the rolls with a thin cloth.
Let the rolls rise slightly.
Bake in a 400°F (200°C) oven.

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.

Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Potato + milktop 9% of all pairs

Smell alikemoderate

Cooked together3,611 recipes

Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
Flour + buttertop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Potato + buttertop 13% of all pairs

Smell alikemoderate

Cooked together6,456 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Flour + milktop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).

Flour and butter barely smell alike, yet cooks put them together in 124,287 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

Flour: Forms the gluten network that gives the bread its structure.
German yeast: Produces gas as it ferments, making the dough rise and become light.
Mealy potatoes: Add starch and moisture, giving the bread a soft, tender crumb.
Butter: Adds fat, softening the crumb and contributing richness.
New milk: Provides moisture and milk proteins that help browning and soften the crumb.

The step that matters

Strain the yeast into the flour, stirring slightly.. Yeast must be fully dispersed in warm liquid without being overheated, since heat above roughly 140°F kills it and stops the rise. Stirring only slightly avoids overworking the dough before the long fermentation.