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 ↓
Savoury Toast
Ingredients
Directions
Prepare
Cut bread into ½ inch thick, 2½ inch square slices.
Butter the tops thickly.
Spread a little mustard on each slice.
Cover with a deep layer of grated cheese and seasoned ham.
Cook and serve
Fry in good butter without turning them.
Lift out of the pan and place in a Dutch oven for a few minutes to melt the cheese.
Serve hot.
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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Bread + cheesetop 7% of all pairsSmell alikemoderateCooked together2,130 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Bread + hamtop 7% of all pairsSmell alikemoderateCooked together2,536 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Butter + cheesetop 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bread
- Forms the base that holds the toppings and crisps when fried.
- Butter
- Adds richness and promotes browning in the pan.
- Grated cheese
- Melts into a binding layer that adds richness and savory flavor.
- Mustard
- Adds sharp, acidic flavor that cuts through the richness of cheese and butter.
- Ham
- Contributes savory, salty meaty flavor to the topping.
The step that matters
Fry in good butter without turning them. Leaving the slices unturned lets the bottom brown evenly while the topping stays in place. Turning too early can slide off the cheese and break the bread's crust before it sets.
Swap the mustard
How well each one fits the dish's main ingredients (bread, butter, cheese, ham, pepper):
- Capsicumfits about as well
- Mustardthe original
- Tomatofits about as well
- Potatofits about as well
Fit is the average pairing score against bread, butter, cheese, ham, pepper. 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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