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 ↓
Cheese Toasts
Ingredients
Directions
The book says “a fairly hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Make the topping
In a bowl, mix the grated cheese, butter, mustard, salt, Nepaul pepper, and beaten egg until smooth.
If the mixture is too thin, add a little more grated cheese.
Assemble and bake
Spread the buttered toast on a buttered dish.
Spread the cheese mixture thickly over the toast.
Bake for 8 to 10 minutes until nicely colored.
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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Cheese + breadtop 7% of all pairsSmell alikemoderateCooked together2,130 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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
- Mild dry cheese
- Melts and browns to form the main savory topping.
- Egg
- Binds the cheese mixture and helps it set as it bakes.
- Butter
- Adds richness and helps the topping brown evenly.
- Prepared mustard
- Adds sharp flavor that balances the richness of the cheese.
The step that matters
Keeping the mixture thick. If the cheese mixture is too thin, it will run off the toast instead of staying on top. Adding a little more grated cheese thickens it so it holds its shape while baking.
Swap the mustard
How well each one fits the dish's main ingredients (cheese, butter, pepper, egg, bread):
- Capsicumfits better
- Asparagusfits about as well
- Potatofits about as well
- Mustardthe original
Fit is the average pairing score against cheese, butter, pepper, egg, bread. 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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