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.
Add salt and milk to the eggs.
Dip the bread slices into the egg mixture.
Cook
Heat the griddle.
Add butter to coat the griddle.
Brown the bread on one side.
Place a small piece of butter on top of each slice.
Turn the bread.
Brown the other side.
Serve
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.
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + cinnamontop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Cinnamon + sugartop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
Cinnamon and sugar barely smell alike, yet cooks put them together in 30,779 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
- Eggs
- Bind the milk and bread together and set into a custard that holds the slices.
- Milk
- Soaks into the bread and adds moisture so the slices stay tender inside.
- Stale bread
- Dry crumb soaks up the egg mixture 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 slices into the egg mixture. Stale bread absorbs the custard quickly, so a brief dip keeps slices from becoming soggy and falling apart on the griddle.
Swap the cinnamon
The recipe marks cinnamon as optional. How well each one fits the dish's main ingredients (egg, milk, bread, butter, sugar):
- Cinnamonthe original
- Nutmegfits about as well
- Parsleyfits less well
- Capersfits less well
Fit is the average pairing score against egg, milk, bread, butter, sugar. 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.
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