Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
French Toast
Ingredients
Directions
Prepare the custard
Beat the eggs slightly in a bowl.
Add salt and milk to the eggs and mix well.
Dip the slices of stale bread into the egg mixture.
Cook and serve
Heat a griddle over medium heat and add butter to coat.
Brown one side of the bread on the griddle.
Place a small piece of butter on top of each slice, then turn and brown the other side.
Serve hot with cinnamon and sugar or a sauce.
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.
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Milk + cinnamontop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Bind the milk and bread together and set into a tender, custard-like interior when cooked.
- Milk
- Moistens the bread and carries the egg into a soft, custardy texture.
- Stale bread
- Absorbs the egg mixture and holds its shape, so the slices brown well without falling apart.
- Butter
- Coats the griddle and browns the surface of the bread, adding richness and flavor.
The step that matters
Dip the bread briefly and evenly. Stale bread absorbs liquid quickly. Over-soaking makes the slices soggy and fragile, so they tear on the griddle and brown unevenly. A quick, even dip gives a moist interior with a sturdy crust.
Swap the cinnamon
How well each one fits the dish's main ingredients (egg, milk, bread, butter):
- Nutmegfits about as well
- Cinnamonthe original
- Parsleyfits less well
- Capersfits less well
Fit is the average pairing score against egg, milk, bread, butter. Candidates are from the same food group and used in at least 100 recipes.
“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.
Rice Gruel28 recipes
Peptoned Milk Gruel9 recipes