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 ↓
German Toast
Ingredients
Directions
Prepare the custard
Beat the egg lightly in a bowl.
Add salt and milk to the egg and mix well.
Soak the stale bread slices in the mixture until soft.
Cook
Heat a griddle and add butter to coat the surface.
Brown one side of the soaked bread on the griddle.
Place a small piece of butter on top of each slice, then turn and brown the other side.
Serve
Serve hot with additional butter, 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
- Egg
- Binds the milk to the bread and helps the slices set and hold together when browned.
- Milk
- Moistens the bread and carries the egg, giving a soft, custard-like interior.
- Stale bread
- Dry bread soaks up the liquid well, so the slices absorb the custard without falling apart.
- Butter
- Fat that conducts heat to the surface, promoting golden browning and a rich flavour.
The step that matters
Soaking the bread. Soaking until soft lets the custard penetrate the crumb. Too brief leaves dry centres; too long makes slices fragile and likely to tear 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, sauce):
- Cinnamonthe original
- Nutmegfits about as well
- Capersfits less well
- Parsleyfits less well
Fit is the average pairing score against egg, milk, bread, butter, sugar, sauce. 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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