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
In a bowl, combine the egg, milk, and salt.
Dip the stale bread into the egg mixture until coated.
Fry and serve
Heat a frying pan over medium heat and add butter.
Fry the bread until golden brown on one side.
Add a small piece of butter on top of the bread, then flip and brown the other side.
Serve hot with cinnamon and sugar or syrup.
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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Milk + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
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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
- Egg
- Binds the milk to the bread and sets when fried, giving structure to the slice.
- Milk
- Adds moisture to the egg mixture so the bread soaks it up and stays tender.
- Stale bread
- Dry bread absorbs the egg mixture well without turning soggy, so it holds its shape.
- Butter
- Fat for frying that promotes browning and adds a rich, toasty flavor to the crust.
The step that matters
Dip the stale bread until coated. Stale bread soaks up the egg mixture without falling apart. Fresh bread turns soggy and may not brown evenly, so the dip should be quick and thorough.
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.
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