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 salt and milk.
Dip the bread in the egg mixture.
Cook and serve
Heat a griddle and add ½ teaspoon of butter.
Brown the bread on one side, then place ¼ teaspoon of butter on top of each slice.
Turn the bread and brown on the other side.
Serve hot with a mixture of cinnamon and powdered sugar.
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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Bread + milktop 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
- Egg binds the milk to the bread and sets into a tender, custardy crumb when cooked.
- Stale bread
- Dry, porous bread soaks up the egg mixture well without falling apart.
- Milk
- Milk thins the egg and adds moisture, keeping the slices soft inside.
- Butter
- Butter adds fat that helps the surface brown and gives a rich flavor.
- Powdered sugar
- Powdered sugar adds sweetness and dissolves quickly over the hot toast.
The step that matters
Browning the bread on the first side. Cooking over steady medium heat lets the egg set and the sugars brown evenly. Too high a heat scorches the outside before the custard in the center sets.
Swap the cinnamon
How well each one fits the dish's main ingredients (bread, egg, milk, butter, sugar):
- Cinnamonthe original
- Nutmegfits about as well
- Parsleyfits less well
- Capersfits less well
Fit is the average pairing score against bread, egg, milk, 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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