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 ↓
Lemon Toast
Ingredients
Directions
Make the toast
Beat the yolks of the eggs well and mix with the sweet milk.
Dip the bread slices into the egg and milk mixture.
Fry the dipped bread slices in hot melted butter until golden brown.
Make the lemon sauce
Beat the egg whites to a froth and mix in the sugar.
Add the lemon juice and heat the mixture.
Stir in the boiling water and serve over the toast.
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 + 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).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Yolks enrich the dipping custard and set when fried, while whites whipped to a froth add lightness to the sauce.
- Sweet milk
- Moistens the bread and forms the custard that soaks into the slices.
- Baker's bread
- Soaks up the egg and milk mixture and fries to a crisp, golden crust.
- White sugar
- Adds sweetness and balances the sharpness of the lemon juice.
- Lemon juice
- Adds acidity and bright aroma to the sauce.
The step that matters
Frying the dipped bread in hot butter. If the butter is not hot enough, the soaked bread absorbs fat and turns greasy and soggy instead of browning. Hot fat seals the surface quickly so the slices turn golden crisp on the outside while staying soft inside.
Swap the lemon
How well each one fits the dish's main ingredients (egg, milk, bread, butter, sugar):
- Vanillafits better
- Figfits better
- Peachfits about as well
- Lemonthe original
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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