Why it works: Bread and milk are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 11,466 recipes. Both carry 2-undecenal, which smells sweet. The science ↓
Bread Cakes
Ingredients
Directions
Prepare the batter
Soak stale bread in sour milk overnight.
In the morning, rub the soaked bread through a colander.
To the bread mixture, add 2 egg yolks, 1 teaspoon salt, 1 teaspoon baking soda, 2 tablespoons sugar, and enough flour to make a batter slightly thicker than for buckwheat cakes.
Fold in the beaten egg whites and mix gently.
Bake
Bake the batter until golden brown.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Bread + milktop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
-
Bread + eggtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Stale bread
- Provides the base of the batter and absorbs the sour milk to soften into a smooth mixture.
- Sour milk
- Softens the bread and its acidity reacts with the baking soda to help the batter rise.
- Egg yolks
- Add richness and help bind the batter.
- Baking soda
- Reacts with the sour milk's acidity to produce gas that lightens the batter.
- Egg whites
- Beaten and folded in, they trap air that helps the cakes rise and stay light.
- Flour
- Adds structure so the batter holds its shape while baking.
The step that matters
Folding in the beaten egg whites. Stirring too vigorously deflates the air bubbles in the beaten whites, so the cakes will bake up denser and less light. Mix gently until just combined.
“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 bread cakes recipes
You might also like
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.

Cornbread345 recipes
Bread Pudding336 recipes
Nut Bread109 recipes
Wheat Bread65 recipes