Why it works: Butter and bread 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 ↓
To Make Milk Toast
Ingredients
Directions
Make the sauce
Melt the butter in a tin toast-pan.
Sprinkle flour over the butter and mix it in with a spoon.
Pour boiling water into the pan while stirring continuously.
Add the milk or cream and stir until it comes to a boil.
Assemble
Toast the bread until light brown.
Dip each piece in the hot mixture one at a time and layer the dipped bread in a dish.
Pour the remaining mixture over the top.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + milktop 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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Butter
- Adds richness and fat, giving the sauce a smooth, rich flavour.
- Flour
- Thickens the butter and liquid into a smooth, lightly bodied sauce.
- Milk or cream
- Forms the creamy base of the sauce and adds moisture and softness.
The step that matters
Mixing the flour into the butter while adding the boiling water. Flour must be fully combined with the melted butter and stirred constantly as hot liquid goes in, otherwise lumps form and the sauce thickens unevenly.
“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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