Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cheese Filling for Sandwiches
Ingredients
Directions
Melt the cheese, butter, and milk together slowly.
In a separate bowl, mix the egg, salt, and mustard.
Combine the egg mixture with the melted ingredients.
Season with vinegar and mix well.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Cheese + milktop 10% of all pairsSmell alikemoderateCooked together4,426 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Cheese + mustardtop 11% of all pairsSmell alikemoderateCooked together1,805 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cheese
- Melts into the base, providing the main body and rich flavor of the filling.
- Egg
- Thickens the melted mixture as it binds with the heat, giving a spreadable texture.
- Butter
- Adds fat that keeps the melted cheese smooth and glossy rather than grainy.
- Vinegar
- Adds acidity that brightens the rich cheese and balances its flavor.
The step that matters
Combine the egg mixture with the melted ingredients. Egg proteins set when heated, so adding the egg mixture to very hot cheese can scramble it. Keep the heat low and stir steadily so the filling thickens smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (cheese, butter, milk, egg, vinegar):
- Potatofits about as well
- Capsicumfits about as well
- Mustardthe original
- Asparagusfits about as well
Fit is the average pairing score against cheese, butter, milk, egg, vinegar. 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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