Why it works: Milk and bread 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 ↓
French Toast
Ingredients
Directions
Make the batter
Beat the egg and add a pinch of salt.
Mix in the milk and enough flour to create a thin batter.
Prepare the bread
Cut the bread into slices and then cut each slice in half.
Dip the bread pieces into the batter.
Fry and serve
Heat the lard in a kettle until it is smoking in the center.
Fry the dipped bread until browned, turning the slices in the lard.
Serve hot.
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 + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
-
Egg + breadtop 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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, 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
- Egg
- Binds the batter and helps the bread set and hold together while frying.
- Milk
- Adds moisture and softness to the batter, so the bread stays tender inside.
- Flour
- Thickens the milk and egg mixture so it coats the bread in a thin, even layer.
- Bread
- Absorbs the batter and becomes crisp and golden on the outside when fried.
- Lard
- Conducts heat for frying and browns the coated bread, adding richness.
The step that matters
Heat the lard until it is smoking in the center. Fat that is not hot enough lets the batter-soaked bread soak up grease and turn soggy. Enough heat sets the coating quickly and browns it, so the inside stays moist.
“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.
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.
Brown Bread461 recipes
White Bread80 recipes
Bread Omelette60 recipes
Oatmeal Bread51 recipes