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
Make the custard
Beat the egg slightly, then add the salt and milk.
Heat a frying pan and add a piece of butter.
Dip the bread quickly into the egg mixture.
Fry and serve
Place the dipped bread in the frying pan and brown on one side.
Add a small piece of butter on top, then turn the bread and brown the other side.
Serve immediately 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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Bread + milktop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
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Bread + eggtop 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
- Stale bread
- Stale bread is dry and absorbs the egg mixture without falling apart.
- Egg
- Egg binds the milk to the bread and sets when fried, giving structure.
- Milk
- Milk adds moisture and softens the bread as it soaks up the custard.
- Butter
- Butter in the pan adds fat that browns the bread and adds flavour.
The step that matters
Dip the bread quickly into the egg mixture. Bread that soaks too long turns soggy and falls apart in the pan. A quick dip lets the surface absorb enough custard to brown evenly while the centre stays intact.
Swap the cinnamon
How well each one fits the dish's main ingredients (bread, egg, milk, butter):
- Nutmegfits about as well
- Cinnamonthe original
- Parsleyfits less well
- Capersfits less well
Fit is the average pairing score against bread, egg, milk, 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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